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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)
' ^% H$ x$ H8 Q, K& m; z- #include <ESP8266HTTPClient.h>
8 J1 K4 o; l' v$ G - #include <ESP8266WiFi.h>
[+ w* o, o5 `+ X/ c; t' X, i - #include <ESP8266WiFiMulti.h>
3 ?- k Y& P7 ?: ?7 b# N - #include <ESP8266WebServer.h>
9 k: {2 \( Q: w8 a, q. T - #include <arduino.h>7 h% |9 u; J" K- T( Z) e! J
- ESP8266WiFiMulti WiFiMulti;# q$ D4 f- p% _1 P0 Q
- ESP8266WebServer server(80);$ E0 E$ z( B/ O" Y, U" C$ p
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 k, }' r' J1 P8 D2 p - ADC_MODE(ADC_VCC);$ C" i. V2 ~+ V$ ^2 z J
- void setup() {) Z) }! z" c- v+ r! ^
- Serial.begin(115200);
6 u/ R# x2 f5 b* O2 ^7 \( G - Serial.print("\r\n\n");
4 v8 R" m k, @' ~* a- Y - pinMode(2,OUTPUT);
/ a( N( Q; A6 b/ m8 _ - // WIFI
# O/ X4 V" L: a% M7 |2 y - WiFi.mode(WIFI_STA);8 o5 m" l& G/ |0 @% h+ {
- WiFi.hostname("Sparkle");
! R: y# S, o3 S$ z$ E, G - WiFiMulti.addAP("wifi ssid", "wifi password");
6 N; [( ~( d& J* ~0 u - int tryNum = 15;
; p! A+ `7 F# v) A$ }, y; g/ t ] - Serial.print("Connect WiFi");- d" S6 X( s4 n/ p
- while (WiFiMulti.run() != WL_CONNECTED) {
& m9 Y0 |, W8 C. E - digitalWrite(2,0);4 p7 P6 e' u. n' _8 z
- delay(200);! s, F3 K; E! s* W
- digitalWrite(2,1);) a7 P3 ~7 @) n) m
- delay(300);
9 C0 ^& c# T! l - Serial.print(".");' H" v: V9 O; t$ P" u
- tryNum--;
2 L% N& o' B( t9 C% ^ - if (tryNum == 0) {
) B+ c& ]% D; c. }+ _ - // 1min; N: U t2 ?- E" p. V
- // ESP.deepSleep(60e6);
4 W" K D+ p$ Y# d9 o( m8 E- v/ o - ESP.deepSleep(0);# \0 D7 c: u7 k$ h; e7 \/ ~( B
- }& o- \7 W3 m" V$ U: u; L
- }4 l' \* D' D ^
- Serial.print("\r\n");& }9 j3 f- h! M" W) _2 n! q% S/ e" u
- digitalWrite(2,1);6 T1 d1 H- P4 E# X0 |+ G
- Serial.print("IP address : ");" x, Z7 B! L5 ?/ F3 z
- Serial.println(WiFi.localIP());
% x6 i9 ~% W( }, R* g' g - server.on("/", HTTP_GET, [](){
/ }0 Y/ E% Y) A/ _ - server.sendHeader("Connection", "close");
# g/ S& l8 w4 X$ J/ ? - server.send(200, "text/html", serverIndex);
' \3 B4 U# @( v+ D. } - });8 z) p* o& y4 o2 j% D
- server.on("/update", HTTP_POST, [](){
) z) P8 Y9 x( \* `+ n# i; H - server.sendHeader("Connection", "close");
' e2 C+ [2 {; z2 M( d - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 e3 T p; s# D
- ESP.restart();* V* {- g) P/ ^5 F
- },[](){' A6 V% k4 X4 o2 x3 R2 ?6 R1 ^
- HTTPUpload& upload = server.upload();# ?2 U6 v5 Q d4 V
- if(upload.status == UPLOAD_FILE_START){
9 c9 `+ E9 ]8 E - Serial.setDebugOutput(true);
, I" B* \: n7 y) K - Serial.printf("Update: %s\n", upload.filename.c_str());
6 L8 A: [/ S6 O8 ]+ T+ E - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! D8 x$ @3 G( A( c - if(!Update.begin(maxSketchSpace)){
7 G/ N) u- n8 X* @ - Update.printError(Serial);% K& q0 p4 N& _: p x( l7 G7 J* g
- }
* m/ ?1 }' t6 d" G; w/ R - } else if(upload.status == UPLOAD_FILE_WRITE){4 r9 b2 I. x7 S$ p9 ]& O2 l
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, p+ g8 Z+ i+ p K5 {4 B - Update.printError(Serial);
4 l# d( `6 t* B2 l7 t$ v* p- ^ - }
3 }2 w7 D( B h9 W9 | - } else if(upload.status == UPLOAD_FILE_END){8 x1 c, b3 B8 r) z
- if(Update.end(true)){/ E) r6 J/ }: q/ z; Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, M8 P, A6 l. S+ X - } else {
$ M) N; f$ L( L - Update.printError(Serial);' T# Y) u( k2 {
- }
k! e0 s% d0 ^# y, N4 e) ~ - Serial.setDebugOutput(false);
: G; C! K1 y5 E5 } B* X+ C6 o - }4 V; L" g$ c8 f; M) N
- yield();$ x6 v, @) ~' a8 w1 W$ h) F: @1 }
- });
" l W. n2 F$ I8 m" f f - * U' d7 l- O! B( h
- digitalWrite(2,0);
, m; ^: m3 N! Y - mainAction();6 k7 l) V" [" J; N2 U4 {- Z) h
- if (digitalRead(0)){0 O8 a6 B. P+ J- \) }
- ESP.deepSleep(0);8 m$ W. Z- l# o8 B; _
- } else {
% u* V) I# j/ T4 [8 r - server.begin();# L) `1 n- L5 r$ q2 [
- }
+ ^) G& ?( v7 ?, \9 ] - }
6 F6 z. ]( }' b7 x+ ~ - void loop() {
( J# z1 H# M' _" o# \% y - server.handleClient();; i" P- H; M! i4 i' }$ ?( i
- delay(1);9 N# n; B/ ~* y Y+ y7 v8 ~
- }
4 E7 y3 b8 v1 u, l0 `) }) Y( l - String doGet(String url){
) l& _6 F; Q5 q$ n$ B. A - if ((WiFiMulti.run() == WL_CONNECTED)) {
- }2 [% q) q2 H) M - HTTPClient http;+ u9 P1 B% \9 @: _1 a$ x% V
- Serial.println("[HTTP] begin...");
; Q. g3 o7 [& ]- z - if (url.startsWith("https")) {
- _- I1 R( z: g8 }: Q# ~ M - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% a! N5 ]9 k! l4 [) ~
- } else {
4 h3 x! i2 B5 F$ d$ n A' H, O% A: c+ `, U - http.begin(url);
" o" ^, W, z- a8 z( n - }
. {: |$ z Y' ]" Y9 n- r* Z% l$ V4 V9 g - Serial.println("[HTTP] GET...");' d O* y5 H) f8 a. |
- int httpCode = http.GET();
1 y# P$ j+ N0 X( Z, \ - if (httpCode > 0) {
8 {! H& |+ S. s7 b- A% ~ - Serial.printf("[HTTP] code: %d\n", httpCode); D; U( |& l- V' A# T3 I; p; s
- if (httpCode == HTTP_CODE_OK) {7 `) B: H+ c. U6 ^/ K
- String payload = http.getString();
9 T" t3 n* B5 a8 Y7 a& T - Serial.println(payload);
# S' ]6 i4 g5 G! w3 X - Serial.print("\r\n");; f7 a1 j* b1 O, D, p/ l1 J* |* \
- return payload;
& K& _5 @4 o$ _1 @+ I - }
$ c, L+ e6 S+ M, p3 f - } else {
A/ o# ^; ^ z; U - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ s2 S$ v! ^8 ]5 a e% e2 v - http.errorToString(httpCode).c_str());" [# a! v6 U: u, q: l( Q: w
- }' H: o3 C- v% q5 S
- http.end();! X+ @- b: R: \: _
- return "";: ^! N( L, {8 l
- }. N3 h q- x* d& N: Y+ E2 i
- }+ @- {4 D( A( C2 P: I. `* W6 L
- void mainAction() {
3 M9 N( r4 v3 }9 T$ s - // 发送请求5 P* Y q4 W' U5 }/ R8 I
- doGet("http://google.cn");
8 ?. w0 Q, i- I. v - }% R2 O4 _ Z0 R: H* ]* d
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