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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)5 ~* N% }7 A1 e, f3 Z( `3 b! D
- #include <ESP8266HTTPClient.h>
* j2 M* ?# A* C1 P6 u+ m - #include <ESP8266WiFi.h>
* y L" P8 b; D" D' z - #include <ESP8266WiFiMulti.h>; J; E$ T% X# X# m0 b4 g( l
- #include <ESP8266WebServer.h>
, @3 m0 ~. r x3 _. ? - #include <arduino.h>
; Y* [% P. _8 X" p6 l2 ^/ E- g: @ - ESP8266WiFiMulti WiFiMulti;# R$ k8 c# N+ X( f7 h
- ESP8266WebServer server(80);
& R" C+ t0 q. @! p1 {' J3 G! J" W' o - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% ?/ x1 t' l4 i- z - ADC_MODE(ADC_VCC);
$ B' z- J6 G/ [- ^/ `1 v2 r - void setup() {. W5 t: b" Z* |* B& C" k
- Serial.begin(115200);
, ]# u' w" n: Q* G6 X" G: F& a - Serial.print("\r\n\n");/ |* S* Q# a p) r
- pinMode(2,OUTPUT);
, h3 `/ N4 M7 e' e - // WIFI+ y) }3 ?! h4 g+ x
- WiFi.mode(WIFI_STA);
/ S( }+ r8 R0 N4 r$ h& P - WiFi.hostname("Sparkle");: T2 [& D5 Q4 W# P' k# `! g" Q" R
- WiFiMulti.addAP("wifi ssid", "wifi password");( N* e" Y# j; _2 T* j
- int tryNum = 15;
i$ Z/ {/ Q( C( t% R& N, R - Serial.print("Connect WiFi");
! t7 `) [: y3 B - while (WiFiMulti.run() != WL_CONNECTED) {
. n- e, C. Z9 Y! n1 A0 W - digitalWrite(2,0);" G: P* M5 |4 D
- delay(200); r4 G! d! L: p5 L4 s# F) M
- digitalWrite(2,1);
: S0 D# Z+ Z& R7 k - delay(300);) x+ M" k5 o- H
- Serial.print(".");- o$ E5 D( l& X% F
- tryNum--;
+ R) y2 p! g, \; o5 N1 S: ~( q - if (tryNum == 0) {
' x( D0 B+ {6 ]& N p - // 1min% p* n9 d0 k+ }7 ^
- // ESP.deepSleep(60e6);* H" U: F2 G+ C+ q
- ESP.deepSleep(0);
7 p% K9 d9 u. g: \ k. B% ~- y9 [, n - }
) E8 M/ m* L: N - }" _( ?5 Z: |# d9 t
- Serial.print("\r\n");
- e, G; p/ b* [ - digitalWrite(2,1);
6 |3 W8 ]+ C5 [, x. R( ]7 A1 \ - Serial.print("IP address : ");
5 f' g- E8 \3 t T" n" a1 P5 b- W - Serial.println(WiFi.localIP());1 @) L4 E7 y) g# { [5 n: S b
- server.on("/", HTTP_GET, [](){" T# S% _: f& D' z
- server.sendHeader("Connection", "close");1 n# L9 M+ U) L/ \; F3 a/ N1 `0 K: q
- server.send(200, "text/html", serverIndex);
- O' H# N* l$ F" y; O& h- t# z - });
! |- m5 g5 H7 |) A, G" E: K - server.on("/update", HTTP_POST, [](){
, _- b# ?6 A) E$ o& K" K X. ~/ \4 U3 k - server.sendHeader("Connection", "close");* a5 L& n3 g, p) P& J3 M
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 M9 F" `8 g# ^; Y+ H( y+ D' V* m - ESP.restart();
5 L8 z5 v7 B. q4 L' G' `+ B - },[](){) K8 V: j% Q; b. I+ H
- HTTPUpload& upload = server.upload();4 v' C$ \. j$ `! {+ ?' h
- if(upload.status == UPLOAD_FILE_START){5 p0 I# @) S1 f$ H5 j& p, A# W5 W, z
- Serial.setDebugOutput(true);
! ` p$ I, S8 s! ? - Serial.printf("Update: %s\n", upload.filename.c_str());
) k! F1 O7 k% {% N4 B& t. ^/ a - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, R. Y* f/ w5 @& Y) [ - if(!Update.begin(maxSketchSpace)){# f, P; {4 s8 G: `1 g, x
- Update.printError(Serial);/ ^* T5 R! q( [2 ~1 c9 w# l/ a, G
- }2 Z. `/ X' o2 K! d7 i
- } else if(upload.status == UPLOAD_FILE_WRITE){) K+ m% q9 T( |5 e, \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 L9 g% X9 F3 o" Q) N - Update.printError(Serial);! T0 R9 j6 ~( W+ x' k. D7 N
- }# M2 f u( w; q% h: Q
- } else if(upload.status == UPLOAD_FILE_END){' R1 p6 w/ h. }8 P* M
- if(Update.end(true)){$ I9 N% L; n9 Y, ?* B" z [
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ w! k9 s% h- u( h/ r+ j3 d
- } else {+ I2 Z" c# p( o4 q
- Update.printError(Serial);
5 O# N1 i) b7 b+ _& J - }/ {$ g+ G, I# ^: m+ k
- Serial.setDebugOutput(false);& q; S8 n# s4 p
- }
0 n v2 H: X! A; j8 J+ [0 q9 I - yield();
+ T! a6 @ Z( x* K g4 I - });, x. a: p- [+ I- @
- 6 r4 S! I/ m* q/ I
- digitalWrite(2,0);
+ S- F% P, Z3 x# j! q* p4 p9 M$ N - mainAction();2 z" b5 |; t; @
- if (digitalRead(0)){
, e$ S. @; A- z; j - ESP.deepSleep(0);
1 w6 L$ S' f4 p; Y G) j3 s - } else {+ H* A- U- X0 H+ D
- server.begin();% v2 V1 Z, o# ?9 J4 b5 o2 N; C
- }
0 }% X/ p2 ?2 D5 n( f! U2 ] - }4 H6 ^0 g, m4 {9 n: y* g
- void loop() {
5 Q2 c$ z6 V7 L7 b& X1 e - server.handleClient();) _% G0 e+ u& t. c
- delay(1);4 z7 n) s. m2 ^9 Z1 q* Y% D, C
- }
# [% ~9 [- `: y) G5 n# D" y - String doGet(String url){
. R ]. t: P$ e9 R+ U7 Q0 s - if ((WiFiMulti.run() == WL_CONNECTED)) {
# A4 r# [! `1 \- [* { - HTTPClient http;
; Z7 H' x y1 E+ J - Serial.println("[HTTP] begin...");
! O, Y0 E2 n+ `. N - if (url.startsWith("https")) {
. z7 X# c; q y* F) z# O - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, _* {4 h& c. a u" U0 O
- } else { B7 s7 X* M" H) B* A% z
- http.begin(url);
& H, V. v3 g, o - }
6 J" w' f P" K, s4 D - Serial.println("[HTTP] GET...");$ P/ h: ^7 r- ]4 a. B' ?0 u9 S
- int httpCode = http.GET();! \1 C0 O( U3 p: c Z
- if (httpCode > 0) {
+ E- {$ n$ d9 Y9 n+ w, r/ n. n. e. R - Serial.printf("[HTTP] code: %d\n", httpCode);6 c3 ~2 p' ~0 m/ a+ u, N
- if (httpCode == HTTP_CODE_OK) {& R* B& M7 c4 Z# c9 l; I" I% K
- String payload = http.getString();
4 G$ P3 f; S1 K8 w5 q - Serial.println(payload);: ~. }: Y8 @1 o3 l% D; P8 ?
- Serial.print("\r\n");
* a3 w+ I, @: n; h$ \. @0 y - return payload;/ r' I+ I% }! ?5 V: ~3 k
- }
3 m# |7 ?& G6 P9 X: X7 k1 k - } else {
# d( I1 o6 ?/ X$ G! W9 y - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 k5 r/ B/ B8 D - http.errorToString(httpCode).c_str());% V* Q* H. ?4 s. r5 y& k5 \6 P0 O" ~
- }3 {. T2 O, H+ o' k, y W
- http.end();
. `' V# C8 T* A% c/ ? - return "";0 @4 G1 _+ C9 c$ y: X
- }
6 X7 P; b0 u/ Q - }
4 d, H* M) q8 ~7 F, u - void mainAction() {
8 \! y0 K7 f" d( f - // 发送请求
2 l" f; m9 G+ a2 T: t" F9 w - doGet("http://google.cn");! M6 p7 d1 e, Y2 Y6 Z' A4 |
- }
. o7 k# d0 N) K* o8 B+ B
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