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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) d% k8 Q, S4 p# ?" o
- #include <ESP8266HTTPClient.h>
! Z( C4 i8 ?) q - #include <ESP8266WiFi.h>4 R2 P5 k; `% |$ [
- #include <ESP8266WiFiMulti.h>
% S8 K6 d3 r5 T6 g6 l8 t: i - #include <ESP8266WebServer.h>- ^/ b0 y* Z; l" P! X4 P) W: |
- #include <arduino.h>9 [3 R. } X. z: i
- ESP8266WiFiMulti WiFiMulti;/ X9 {" a8 S' J3 O! E' F
- ESP8266WebServer server(80);* E6 s5 s1 ]& e) g$ [2 f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ }) O: y' y5 i2 o
- ADC_MODE(ADC_VCC);
! c% {, e( n) e/ s. d - void setup() {6 V, I1 O5 q- k7 @( y
- Serial.begin(115200);
- k9 ?4 K0 M% W% T( m+ l ? - Serial.print("\r\n\n");" O+ t1 e9 e4 O3 k/ q* n8 q4 F- p4 o
- pinMode(2,OUTPUT);% c2 m- C' o& J9 {* s; k
- // WIFI7 c6 r, Y: S7 w* r7 W% C
- WiFi.mode(WIFI_STA);9 n# o/ T4 D# v6 q. y( y
- WiFi.hostname("Sparkle");
0 f! U7 @1 |" N5 I+ O - WiFiMulti.addAP("wifi ssid", "wifi password");
5 `7 y0 [ a4 } - int tryNum = 15;% H4 X7 D# f' `0 E$ M# ~
- Serial.print("Connect WiFi");2 q+ ^/ i% p* X- g
- while (WiFiMulti.run() != WL_CONNECTED) {
, ~5 Z9 {& l2 c5 L* r' k0 E - digitalWrite(2,0);# e* l! L( v W/ z+ H
- delay(200);
* I. }6 a5 i2 a& m6 s - digitalWrite(2,1);
3 J d \- z9 M2 Z( a, K& m2 {! [ - delay(300);
, V* r: s6 a% a$ q - Serial.print(".");
3 O! Z2 i& S1 i( K2 h& u# j - tryNum--;
7 y' a, Z. t& \4 A: O5 O5 t - if (tryNum == 0) {
( k& j: {4 |$ g( d - // 1min
& D, s/ Z3 e$ i p: M" H9 e - // ESP.deepSleep(60e6);
- Z0 u6 {. _; n - ESP.deepSleep(0);5 R7 q1 L4 _/ S7 N) q+ |% Z; B
- }5 q+ a+ \/ v3 ^) H7 n. S
- }/ s) }+ D* S7 T3 m
- Serial.print("\r\n");0 N9 V* Y2 b' U' w
- digitalWrite(2,1);( D) ]: Z" p! `- S9 R
- Serial.print("IP address : "); [8 `0 ^7 h! ~& v1 k$ j/ X
- Serial.println(WiFi.localIP());3 _" l5 m3 w: R; b6 u
- server.on("/", HTTP_GET, [](){1 `+ ^2 H" V% ~& r; Z: z
- server.sendHeader("Connection", "close");# P3 ^( F; I4 E6 u8 J! ~% e' J
- server.send(200, "text/html", serverIndex);
- ?& A- f8 G" ]5 Y X7 z0 @ - });' W$ c" ]% L, H2 X9 Z3 P
- server.on("/update", HTTP_POST, [](){0 L! d: t0 q+ z* F; `
- server.sendHeader("Connection", "close");4 [4 b; \$ C) H
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. a# `& u2 l# m d9 V$ r
- ESP.restart();
9 M: R8 J: N: v - },[](){
3 v1 L( y, S/ h1 b - HTTPUpload& upload = server.upload();* L% N6 I) h- k+ k
- if(upload.status == UPLOAD_FILE_START){
' q S. }# q' Z/ {+ v) u" A' a, r% h - Serial.setDebugOutput(true);' M7 ~" d) o4 C/ \, k* E
- Serial.printf("Update: %s\n", upload.filename.c_str());# L. {( M# H4 J2 U* w5 C
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 Q) Z1 z* {8 a - if(!Update.begin(maxSketchSpace)){
# e' j1 [7 t" ?. w# t4 F - Update.printError(Serial);
% ]" @$ {+ O3 } p: @0 p6 ] - }
) L7 w S. h" v# q. p; P - } else if(upload.status == UPLOAD_FILE_WRITE){/ m' D% x! y* G, X% k5 m
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ P+ R/ ^8 D4 u S6 x* v+ Z - Update.printError(Serial);0 b9 c$ j: ?7 f. Y5 j; S
- }
7 F. r8 }! k1 M* @ W2 y0 j5 y - } else if(upload.status == UPLOAD_FILE_END){
p2 h8 k0 A" `- _" A- X% A - if(Update.end(true)){
$ M- E3 _2 |' K- q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, |7 H# o) {- N% e) W
- } else {
" p. ?5 R2 ~ o+ f9 X p( l - Update.printError(Serial);
4 i: i$ Q8 F. G, }$ c2 ]& T - }, ]3 ?: Z6 A( \3 \. K
- Serial.setDebugOutput(false);
* v& d; f9 t0 d5 N - }4 m( I0 Y& F4 v k8 A N0 |
- yield();) y8 I* V1 x n
- });
* ~6 E& _& A" ^! @; U# f8 y/ h -
+ L7 n3 T% ^, Z( K0 _# p4 F4 V6 ]0 ` - digitalWrite(2,0);
2 e+ B3 `8 A* H Z+ p4 g O - mainAction();
1 c7 g3 t$ }) w( R - if (digitalRead(0)){! c9 c h- t7 @( H7 n& f3 F- p
- ESP.deepSleep(0);7 e. j, x" }5 J. y
- } else {
y- U7 N3 S4 n5 K# ? - server.begin();% U9 ^! I0 Q F" U8 Z( W
- }9 @5 T4 }0 z/ T) {
- }
; q# H1 W1 L' |' p% y - void loop() {! w- l9 q" x3 C1 W4 W2 k0 ]
- server.handleClient();& ?5 w; r& ~6 u9 D0 h; f$ E
- delay(1);
2 Y1 l% `. G# w. \ L - }
( o$ Q8 o! w! e2 V; s5 T: _& s+ v, r - String doGet(String url){
" m3 q2 A; P$ w5 j - if ((WiFiMulti.run() == WL_CONNECTED)) {
: o6 y# ]3 S+ d7 D: q4 h0 M5 q* e - HTTPClient http;
- _, P* u) g/ W# ^3 n4 B# n8 ? - Serial.println("[HTTP] begin...");
/ I+ l( c- W& {! c+ \ - if (url.startsWith("https")) {
, M* |' k% W" H. U - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# m3 C( i9 f. @& f
- } else {
6 S+ g- j2 O( y" k - http.begin(url);
7 S9 Z' y: ], w, n. \ - }
6 H+ M8 ]$ j0 M9 l5 c4 { - Serial.println("[HTTP] GET...");, j: s$ ]: |5 k% M5 o
- int httpCode = http.GET();
% e! v+ L% h8 o4 E# _ - if (httpCode > 0) {8 {, D, w% |: p2 [) C
- Serial.printf("[HTTP] code: %d\n", httpCode);
( B8 f8 G, S' Q* N4 L# a; h6 S - if (httpCode == HTTP_CODE_OK) {! F, U0 C9 v& y, r
- String payload = http.getString();
, _7 p( _" Y7 r: k; E - Serial.println(payload);
8 }5 t" j5 ?! M! J# q: j; T; I - Serial.print("\r\n");- ^; N! M9 v+ P- v% W k' ~6 J
- return payload;! U t+ E& C) s! c
- }
7 _4 ]9 U4 j! P+ b - } else {2 l; ~3 {& t7 h9 h+ Y( ? I$ E
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, ?3 z1 S, x6 p1 I& l1 l - http.errorToString(httpCode).c_str());/ H: p7 d+ B% T% _6 k) L) Q! ?
- }8 ~8 b0 S, c- A3 \3 e& P) f1 u; u0 m- K
- http.end();/ u: _7 R) `; J5 c
- return "";3 i+ ^' W! w0 F4 e
- }% ]( t, H4 O: y* ], g2 }" T! f4 Y( R
- }
& ~% P7 o* {. w& I- Q - void mainAction() {3 ]+ o" p4 {$ v2 f/ k+ S' p3 U
- // 发送请求1 t! \5 D! d6 x; ]" X0 h3 e( B& u- R% i
- doGet("http://google.cn");
) k9 c; J3 p# t8 c! ~ - }
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