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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)3 y C8 d- ]. d& D
- #include <ESP8266HTTPClient.h>
- D: ^/ u9 x5 g- Q; | - #include <ESP8266WiFi.h>
: b4 d( Y8 \* ]9 J! W0 G1 x - #include <ESP8266WiFiMulti.h> R5 `8 Z, Z5 {: D: z, q1 ]
- #include <ESP8266WebServer.h>
) P8 ? M5 ~, k, ^8 t) g* K: M - #include <arduino.h>
- o$ l( S! ]" x0 l* [+ A Z - ESP8266WiFiMulti WiFiMulti;4 C9 t8 B+ X! i" s9 z
- ESP8266WebServer server(80);
. J" m1 e* S# m4 V8 Z! ] - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ H9 @6 A, j s0 F0 _6 w
- ADC_MODE(ADC_VCC);0 I' g' w+ u3 k* V" F
- void setup() {
2 x: y' l* _8 S, u - Serial.begin(115200);; a8 ~/ |5 `4 H( ]
- Serial.print("\r\n\n");! |$ i. ?6 |" X2 I& S8 @( Y, c
- pinMode(2,OUTPUT);4 P% K9 r- J$ S6 @% S
- // WIFI$ X* s$ C8 s) S% W% U4 H2 ~5 |
- WiFi.mode(WIFI_STA);2 g6 t5 Y1 K" r2 k
- WiFi.hostname("Sparkle");
7 P5 r1 O. J% R/ Y- A/ H7 i! d+ I; Z - WiFiMulti.addAP("wifi ssid", "wifi password");! Q2 k) u; R) Z7 t {. J9 ^
- int tryNum = 15;
# [- u: ~5 c7 o& q% [$ D! G, N J7 q - Serial.print("Connect WiFi");- {7 n7 P c7 K) N% m
- while (WiFiMulti.run() != WL_CONNECTED) {8 ]/ } p; g; l
- digitalWrite(2,0);
" q- }; N. u' Z& |* n - delay(200);: @ _2 V5 O/ s \
- digitalWrite(2,1);& I5 F3 r& d+ A% w5 C
- delay(300);! H+ E$ }5 Z* ~8 u2 n
- Serial.print(".");
. s Y) u- N- ]' } - tryNum--;
! ?: ]7 e0 ]4 | - if (tryNum == 0) {
( q* H7 L$ H( ~8 l+ d - // 1min
y. i4 s* X3 m; G4 x$ t } - // ESP.deepSleep(60e6);
0 f" {$ }" ]. z( L - ESP.deepSleep(0);
7 H$ d2 y, l. }4 a* N - }
/ L) n7 i/ }8 x2 O/ a/ q( K - }7 X2 j1 Z# P0 b0 X! K; @
- Serial.print("\r\n");& S6 {7 B+ p0 A5 E
- digitalWrite(2,1);
& A: q7 _1 W8 Q5 _5 C& n$ ~5 e u% G' U - Serial.print("IP address : ");
" b1 F( T( i7 N/ p - Serial.println(WiFi.localIP());
1 _ v [+ }: h - server.on("/", HTTP_GET, [](){
9 L |% f# u+ M' n - server.sendHeader("Connection", "close");! S: E: B7 U) ?' i
- server.send(200, "text/html", serverIndex);
- o9 Y2 p" B. h+ ?5 c2 L: \" [ - });
, k+ @0 |. z2 W! Z - server.on("/update", HTTP_POST, [](){
, b) d1 s9 ~) o/ x0 y0 ` - server.sendHeader("Connection", "close");
5 x& w) ]2 Q! w0 R. i - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 @ \* z0 r( k. m7 ]: J
- ESP.restart(); V! H: {9 A3 v' |4 F
- },[](){( N+ E; m% |! m& K2 l
- HTTPUpload& upload = server.upload();7 H6 `# J W5 z. R3 r+ e
- if(upload.status == UPLOAD_FILE_START){6 B6 r8 a. \; N
- Serial.setDebugOutput(true);# _$ B! e' X; }8 ]
- Serial.printf("Update: %s\n", upload.filename.c_str());0 }0 N/ G4 b6 i6 p
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 V; y5 h8 T3 K: S7 ` - if(!Update.begin(maxSketchSpace)){: h) G2 ^) g1 r! d& R/ T* L
- Update.printError(Serial);& U* [6 ^3 c+ `( N( g) k
- }
8 S" a, l7 k/ I8 }* E' f7 j - } else if(upload.status == UPLOAD_FILE_WRITE){8 s( v. d- c- a: R& n" @
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 O, j* ?% `- a
- Update.printError(Serial);! T1 E4 r4 Y: A6 [, @6 z
- }
4 G& w, N$ `; g7 T - } else if(upload.status == UPLOAD_FILE_END){, ?7 A" x4 A2 Z( }
- if(Update.end(true)){
2 t# K! a. c% u, f- M# E- a, l - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ y* x6 u" H( t% J* e& S - } else {
: @' [; Y2 L- K) n# J& F4 ] - Update.printError(Serial);
5 g) k: ]3 \4 H9 L2 |. s8 U' G - }) B% Q) l$ e' B9 r# M6 y
- Serial.setDebugOutput(false);
+ n2 q5 ]3 w b* b - }3 c' R' z8 ]$ Y- z
- yield();5 k/ r5 \: W$ I9 s
- });
7 Y7 _- c# C: \ - - z2 s! Q, J' [- Y& y! n3 _/ [, ^
- digitalWrite(2,0);
$ @! j2 j+ G8 o4 @ - mainAction();& ?( E8 W x3 H4 t2 x
- if (digitalRead(0)){/ t1 g" T9 d9 M
- ESP.deepSleep(0);
L) B$ [. v, L# u9 B - } else {
8 L" |4 N% ]2 }4 y - server.begin();
7 E6 B% \: N/ U3 g: Y/ \ - }* ~3 S8 T. ^/ a. g8 P* w0 F3 |
- }
- d( ?# j0 F: W/ @ - void loop() {
1 f, I, W9 h( u; F- ~$ d# b - server.handleClient(); }6 P% O/ ~) ~9 e& Z
- delay(1);- {8 B0 H* i4 V- _
- }
6 \1 I8 B, Z+ }+ a v2 g - String doGet(String url){$ k& v& z% t9 j6 u) n
- if ((WiFiMulti.run() == WL_CONNECTED)) {
9 z5 F2 j- Y* t - HTTPClient http;
1 N5 j1 ^7 w2 W5 P4 V - Serial.println("[HTTP] begin...");
* w* G* U( v. r! s7 q8 k - if (url.startsWith("https")) {
/ U- L+ g+ H/ F, | - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" h2 c& ^' N$ J3 @, @ - } else {
! F( [0 k6 O7 x B3 B2 v - http.begin(url);
1 V1 h7 }) b9 }; h1 _* k6 D - }
6 k( ^4 s' d" f; W) Q - Serial.println("[HTTP] GET...");
6 [* t! l7 w2 A: Y; u0 V* U - int httpCode = http.GET();
, n! j9 J+ ~% H3 p) w - if (httpCode > 0) {
7 k, i, U& r5 f- N' q( r8 n - Serial.printf("[HTTP] code: %d\n", httpCode);
# _; L! f* D) X7 |5 P) [ - if (httpCode == HTTP_CODE_OK) {% U2 o9 K* j! {4 ?* V8 M
- String payload = http.getString();
- E: f, z( Y4 ^" A' | - Serial.println(payload);4 i3 ~) B. }# k6 L. p- J
- Serial.print("\r\n");
, V' m( A" Q9 d( A8 Q - return payload;# B& `! [% J% c! {" M* R
- }
6 Z5 J3 B, C$ f, l* G! W3 e - } else {
8 Q- G& {& f! b: a" C! u% A - Serial.printf("[HTTP] GET... failed, error: %s\n",4 Q m) M/ m% j
- http.errorToString(httpCode).c_str());
2 E# g" o2 Z; ?+ O, g' u - }
/ v; S* d: g" n P - http.end();
/ g$ V$ V7 L$ ^) W - return "";, Y7 u% R$ S# z! m. j' F
- }6 [; `1 b6 V- a' k9 |
- }
& Z* C( Q w. ?5 @; E - void mainAction() {) Q# u# D: ~1 m$ x; ^+ a
- // 发送请求0 |4 p; |1 F( O, D# S- ^
- doGet("http://google.cn");0 I- u! l6 D; t$ Q' Y
- }- k1 S; _/ S5 v( \: C" u8 a
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