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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)( @* X, d- H9 h/ n) k7 Q2 D
- #include <ESP8266HTTPClient.h>
% H1 d! z) ^" Q) ~- ]2 ^ - #include <ESP8266WiFi.h>3 G# _ L+ Y) T8 M2 i
- #include <ESP8266WiFiMulti.h>
# R# `# M9 h9 |7 h0 @0 H/ u9 a* C - #include <ESP8266WebServer.h>. ^& |) `* A# {3 I& a* g% J
- #include <arduino.h>
8 w$ ^9 N' Z+ |, M - ESP8266WiFiMulti WiFiMulti;! \# e; A3 W1 t5 E( ` [
- ESP8266WebServer server(80);; X, w0 ^. C6 W7 q- R! |
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: u- w; [: |0 e5 I. E. m, f
- ADC_MODE(ADC_VCC);
5 z, L6 T" ^8 { - void setup() {7 _0 b0 q( [6 V5 I
- Serial.begin(115200);1 ]7 R0 N# P" U1 v% V ^
- Serial.print("\r\n\n");% s, `4 S0 `* x9 D
- pinMode(2,OUTPUT);. R7 X q" ^: {( O
- // WIFI1 a4 @. N8 u* H g" X
- WiFi.mode(WIFI_STA);5 `4 O6 o5 d* k, ^
- WiFi.hostname("Sparkle");( V# H5 {7 C0 ~8 y; u; B% T. S- U
- WiFiMulti.addAP("wifi ssid", "wifi password");
& i& S( N* C# S - int tryNum = 15;
0 Y! g; H x+ t2 B/ @. W - Serial.print("Connect WiFi");8 j! [ a% ~& u) n: D
- while (WiFiMulti.run() != WL_CONNECTED) {8 L0 ^$ o" w% h: e5 h# B7 v# U
- digitalWrite(2,0);1 h# \$ V" r; \2 G, v B2 t3 N2 c3 D
- delay(200);
& r2 V. J* }# [, a$ t - digitalWrite(2,1);3 G( j6 j9 o; x8 L
- delay(300);9 P7 P9 @% [; x1 z2 D& [
- Serial.print(".");
! j/ D0 v7 O7 K8 p - tryNum--;5 {9 }: Z a& f1 |2 R
- if (tryNum == 0) {
% _! H' D- }2 x- j& ~ - // 1min
2 R7 r9 f1 @$ G4 o - // ESP.deepSleep(60e6);
' V# @: Y, D" a. H; a4 m+ o) V t - ESP.deepSleep(0);
1 r2 l( c( k5 T9 ~, H! ] - }; r" h2 Y1 j5 C& u A8 s, R, O2 }2 F
- }
. m/ ~* | ?$ R1 q# L - Serial.print("\r\n");4 C& \0 k5 [5 d6 X- H
- digitalWrite(2,1);% m/ r9 U1 m. I
- Serial.print("IP address : ");
, [2 ]5 q' W! I4 _+ C - Serial.println(WiFi.localIP());
9 t3 T' n: b5 h/ Y) s8 X; s - server.on("/", HTTP_GET, [](){
5 R3 z" F. S5 o Z1 g - server.sendHeader("Connection", "close");
3 B; E j0 x; n% {, p& n9 S' s - server.send(200, "text/html", serverIndex);
; w$ t$ q6 b9 k4 f" {, d - });
+ A$ W& E; ^5 q% p4 T# f - server.on("/update", HTTP_POST, [](){
; @: Z# |5 p. B% i. z3 r - server.sendHeader("Connection", "close");
$ m8 ?5 `) a' ]6 x5 ~; } - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 i# l% L" S8 b( `& Z( o/ I" M1 ] - ESP.restart();5 C) _3 k7 @( D+ H2 J
- },[](){
& N) e8 Q' j4 V( Z7 i3 N - HTTPUpload& upload = server.upload();
$ w% y. N* T0 z- z2 u5 L ]+ f5 o% @ - if(upload.status == UPLOAD_FILE_START){! P( K1 C: H% A
- Serial.setDebugOutput(true);# q+ A8 w7 o5 W% O$ {& U3 H3 Q0 p
- Serial.printf("Update: %s\n", upload.filename.c_str());
9 f! j5 \- R/ h( | B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! T& d. V; J6 C3 }3 Y - if(!Update.begin(maxSketchSpace)){7 B- Z% O& W4 p' r9 }' M8 m
- Update.printError(Serial);
: ]& u9 D% \; F& |7 | - }
3 k1 L1 M z' w9 U9 u% s - } else if(upload.status == UPLOAD_FILE_WRITE){3 W& h& L" e$ p- V Q1 L
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 S! [3 D+ ]( v9 O; r( O2 @
- Update.printError(Serial);
( w# q- ]; `/ L& S( Y5 i# k - }
8 | }# _. }5 ?* W# Z - } else if(upload.status == UPLOAD_FILE_END){" G. `0 x" Z, h- t
- if(Update.end(true)){
0 ?) |( H' S2 x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& A n# J0 R0 f; o$ O
- } else {
: v! R3 `/ V; Q' L+ p0 w$ D# ~# G - Update.printError(Serial);* y* w! O5 ]- P' e
- }3 m9 ^) v7 z" ~3 F# B4 s# ?
- Serial.setDebugOutput(false);
5 ]0 c5 a2 H! Q5 b - }3 D9 K( g" v4 y4 _2 \. L% d
- yield();
8 w* _0 i- u4 t) x' ` - });
# F; R# R, m6 X/ ?6 e# A- c7 ~ - # K6 @2 b& l4 {1 R4 b5 C0 M5 i
- digitalWrite(2,0);% s# T9 ^ b0 N. q0 i: F
- mainAction();
) g: m9 r J) W2 j2 p) C- x4 _4 W - if (digitalRead(0)){6 b4 F' T' V$ \8 l4 f0 n
- ESP.deepSleep(0);# h- o7 F" f' S. I- m
- } else {
; R% i$ l+ h# z0 D% V v - server.begin();! H1 x, O. i1 w2 ^& z$ J" n
- }; v. H7 S0 d/ ~2 V4 L
- }6 F: s( X, L3 J3 [ ~% D7 a- ^
- void loop() {( N, \0 E! `3 B- P; E- e' p8 j0 I
- server.handleClient();" f, y& v& U2 D; p& a4 Z+ d
- delay(1);
+ N. |% H: s6 c7 y! n. V! } - }
1 w. `$ w+ G/ m1 I7 V2 o1 j - String doGet(String url){. p* s! p7 p2 [6 k$ M
- if ((WiFiMulti.run() == WL_CONNECTED)) {6 I; ~5 \5 a: b/ V# a3 b
- HTTPClient http;
9 f& k! G7 o# `2 x( l, t - Serial.println("[HTTP] begin...");
! ^+ M- m, A2 ~ C; J$ y - if (url.startsWith("https")) {
1 @6 _( m2 d9 z! M) c$ M* K9 { - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ x: y7 Y) k6 a2 T
- } else {7 x; p, ]$ }# A" v( c& v S: A
- http.begin(url);
( U! G3 B4 d Z; @8 T M( ~+ n$ ` - }
0 q+ y( g4 @. p7 X - Serial.println("[HTTP] GET...");
& n2 d6 Y4 G1 @" L - int httpCode = http.GET();
$ i" R, Z3 j! e! y& y - if (httpCode > 0) {# T9 y$ ]; h9 {0 G8 g
- Serial.printf("[HTTP] code: %d\n", httpCode);8 T1 ?2 I% L- d+ [
- if (httpCode == HTTP_CODE_OK) {, N' J1 ]# X$ v5 S2 i$ ?, F
- String payload = http.getString();
. R* p5 P" X3 l0 R% O) s( { - Serial.println(payload);
! }, d+ f2 @) q5 c8 N. M" g* w2 P - Serial.print("\r\n");, ^: n ^$ ~/ E4 o; w4 t
- return payload;
- p% @' _$ p5 M Y - }
4 c- r3 j b$ Q7 U! L) y3 I - } else {
4 ?% e$ f# P& L: V. z; } - Serial.printf("[HTTP] GET... failed, error: %s\n",
% E7 E. Z' W- _+ p% a - http.errorToString(httpCode).c_str());
, w X/ J b( J {; b! h' x- |; J - }0 P3 W, S% v" a4 D' ?8 N3 w( |
- http.end();9 \ i9 K0 t4 k
- return "";! Q. J6 P# d; t X4 B+ [& Q
- }4 n: l: q! q z* d" h) Z- d5 S4 J
- }
+ s* b; g: ~/ U$ |- `: ^ - void mainAction() {
& _5 R0 i8 G( Z. W! `/ t* ` - // 发送请求
/ ?9 V6 i# `; }: F - doGet("http://google.cn");
/ ?7 J! i/ H0 f P" j - }% N* k+ t' Y% \, R
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