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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)# g( c+ U6 o% t* H* Y2 }
- #include <ESP8266HTTPClient.h>
1 b. F/ x4 W3 U6 B- M# e8 K - #include <ESP8266WiFi.h>
: u( Z, m+ Y$ B8 Z: G - #include <ESP8266WiFiMulti.h>% h, _( I2 d* G) [% L
- #include <ESP8266WebServer.h>0 v. Z" X6 u( F3 H
- #include <arduino.h>+ ~9 f' n1 h& H( S: w
- ESP8266WiFiMulti WiFiMulti;! n: ^2 E% r- X9 ?2 T) L: E
- ESP8266WebServer server(80);+ a* W# N0 h3 Q7 w2 K& ]
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& J1 T) M" ^9 b
- ADC_MODE(ADC_VCC);8 [+ V2 R0 l0 Z! V7 y
- void setup() {( I5 F2 D' k% }! o9 F! R# ?
- Serial.begin(115200); U; _* C/ ]. O' n) e9 [
- Serial.print("\r\n\n");
: U1 E7 B) m9 ~7 P( L* x" _ - pinMode(2,OUTPUT);
2 k# ]5 h* N7 ~# t8 j - // WIFI6 t! ~/ ?, a/ |' B" m7 i* M
- WiFi.mode(WIFI_STA);& I8 l& R5 P# {2 i ~
- WiFi.hostname("Sparkle");) N- w3 O! L4 c
- WiFiMulti.addAP("wifi ssid", "wifi password");1 k, S0 [' N( d; D# X
- int tryNum = 15;$ ^5 N! \ m, [! h1 N) @5 X
- Serial.print("Connect WiFi");9 P9 { E9 b2 c. D: j% ~
- while (WiFiMulti.run() != WL_CONNECTED) {
/ h. ~8 E! r2 Z - digitalWrite(2,0);
3 `9 ]6 j& p* W8 s - delay(200);
9 {3 C) W, M3 ?/ T - digitalWrite(2,1);0 N8 {0 J7 I5 S, D0 _
- delay(300);$ r3 N) G8 ^9 d8 Y7 P6 t0 t
- Serial.print(".");
% n7 G+ h* f, U& e - tryNum--;, E' q m+ o) B. t" j
- if (tryNum == 0) {
& h& M! J1 t! Y2 U" [9 f. A$ [( B" b - // 1min
8 ~5 {% R5 r1 w% L - // ESP.deepSleep(60e6);/ S2 ^* e ~, w; F- ^
- ESP.deepSleep(0);
7 [% Y7 o2 ~( |% I8 r5 @ Z* d - }
4 f" ?' X* U1 |% }; o; q - }- N( C1 {9 Y% A5 n* ~
- Serial.print("\r\n");- u1 M7 a7 M1 ^$ |6 x$ B
- digitalWrite(2,1);
. n$ ?4 Y' w+ [$ K$ }2 [ - Serial.print("IP address : ");# X7 Y) J' [ c
- Serial.println(WiFi.localIP());
" D* t* e7 J, {/ B - server.on("/", HTTP_GET, [](){
$ K4 o) o4 e- C4 N0 u3 r6 \ - server.sendHeader("Connection", "close");- l9 C1 @- l$ K2 i+ ~
- server.send(200, "text/html", serverIndex);1 ^- E: i) p1 q# U/ C# D& m
- });
W$ ]/ Y# f$ Q8 h% Y6 |7 C+ A( m - server.on("/update", HTTP_POST, [](){$ n; T1 g5 E- W" X
- server.sendHeader("Connection", "close");
. C( I/ _! w2 q% N0 I7 z& H! c. { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 j9 D; d D8 b# w8 t
- ESP.restart();3 w& O' O6 }% E# M( T% H
- },[](){
1 C- }' v x. O) q8 s - HTTPUpload& upload = server.upload();
" E8 ~7 f$ I- [) {7 q7 C - if(upload.status == UPLOAD_FILE_START){
0 Z0 f) b& t. }- t% c& E- k# @3 b - Serial.setDebugOutput(true);- N0 o* O' Z% F0 P
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 X" F/ j$ q- y0 A& F) L6 Y) H - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
) L& f6 Q: j% f - if(!Update.begin(maxSketchSpace)){. z, x& z) g2 ~2 p2 P* D
- Update.printError(Serial);
& Z: R0 U1 I( Q( J& z - }% A* z3 @. y$ t3 z# q
- } else if(upload.status == UPLOAD_FILE_WRITE){5 f3 @! c( Y: K+ m+ W
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. S( ^8 {; v5 x" P! a/ @! R! P
- Update.printError(Serial);
2 ^; q6 L7 `( `6 ^# r - }* z/ P! C; C9 e/ I8 g+ y1 @
- } else if(upload.status == UPLOAD_FILE_END){% y5 W6 V* z! W8 s7 @, y5 M
- if(Update.end(true)){% T/ x K. t3 n4 a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: d' G8 u5 g% X; X4 t
- } else {
3 r Q; w" ?! D( i - Update.printError(Serial);
2 \( t2 h! N7 d1 W9 w" k - }5 r3 `1 j! k. A3 N) X
- Serial.setDebugOutput(false); @' C( q z/ n) V, o! Y0 n
- }
4 I" P2 r: s4 s, W/ o8 y - yield();+ x7 O ^1 L1 @( B9 k3 P+ C4 p
- });% o) I. m8 K2 r3 p
- & v- f0 b2 p2 d, M, J
- digitalWrite(2,0);
" E8 g0 O' I# n; f6 C5 w+ B% d5 B - mainAction();' H2 G) @) E; M, C
- if (digitalRead(0)){
( X. a9 c7 X* w - ESP.deepSleep(0);* F0 O8 S2 G3 [5 _
- } else {
6 b6 Q/ z) o9 f - server.begin();: b' i+ @# n9 j5 T0 R
- }
+ e9 y5 Z) D/ T) I$ M j7 d - }# t9 i, d) b% [- R( _
- void loop() {
+ P8 O8 l/ r' F. } - server.handleClient();, V# R3 ?& d# d7 @, k+ t
- delay(1); I: Q0 Q4 B( y+ T6 V' Y: e* Q* k3 R# d
- }% R( x6 w7 G" ~
- String doGet(String url){
/ p8 @) x, V4 z# _* U/ J - if ((WiFiMulti.run() == WL_CONNECTED)) {6 j# s- B* n ^4 e: Z w
- HTTPClient http;
I) J* u* ^4 v$ |* Q* ] l - Serial.println("[HTTP] begin...");
& O) B; O# s6 e/ G i5 g) m - if (url.startsWith("https")) {" j: K/ O) @* s5 i7 X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 F+ q- g( m+ Q. m- R& v( ?/ r
- } else {
8 `' [+ A% e m) R% l, {, f - http.begin(url);
9 Z6 Y: y4 L/ A - }
6 S* f2 B) G4 s$ v$ _+ w6 y - Serial.println("[HTTP] GET...");
& p& g9 J' M" {, j' _5 S' h' e - int httpCode = http.GET();
5 [3 |. y' i d! R: ~ - if (httpCode > 0) {) J* y( X" K4 o' x! @, I8 m) f
- Serial.printf("[HTTP] code: %d\n", httpCode);
! b1 B( O7 l* F% {2 D2 y% q - if (httpCode == HTTP_CODE_OK) {* X3 h) y5 f4 i/ C( x
- String payload = http.getString();+ W$ n9 R7 X3 b" F3 Q4 u
- Serial.println(payload);
" t/ _" H5 l( U2 O1 b: g - Serial.print("\r\n");) f% k% S5 M, ]" F, Z7 O7 x
- return payload;
* [+ w/ n1 a$ F6 R3 X. W3 | - }
% L( }9 F, W8 h ]- H/ v; x - } else {
# }( h. G/ ], g! N/ {3 ~3 a- S - Serial.printf("[HTTP] GET... failed, error: %s\n",: v% d- G, Z" R/ p+ _% h
- http.errorToString(httpCode).c_str());
% m5 o/ |/ A' k' c+ s& Q+ `7 y - }/ D$ t5 F9 ]+ R$ G* \; f2 H
- http.end();
* O* `- E* F7 O6 e* z - return "";
. z. L4 H0 k/ o3 F; [ x' r0 W - }: J7 ]) V$ Q; w3 n8 e
- }" _2 V9 y% @) k
- void mainAction() {5 Z0 q! h, p' n Z8 @! Y! t0 m k
- // 发送请求
; l5 F% W+ |5 o J7 j - doGet("http://google.cn"); D4 i7 a9 F7 Z( z
- }
) v! A' I7 x V8 k* }% A
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