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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)$ A& E( @3 J: Q2 ]! B! O
- #include <ESP8266HTTPClient.h>2 Y9 x* e! e) F! x. |2 W3 F
- #include <ESP8266WiFi.h>( `4 _: w: c, M
- #include <ESP8266WiFiMulti.h>
/ m! l/ u. Z2 G; g1 `& ~ - #include <ESP8266WebServer.h>
6 w* H: P# H7 e9 Q/ t - #include <arduino.h>; s+ D. y1 N e8 R: y
- ESP8266WiFiMulti WiFiMulti;
" E& {1 u( `8 F! J; `4 `, k9 H( Y$ p - ESP8266WebServer server(80);0 ~7 i) `8 ?: r- i
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* \1 J& m2 x6 f% E
- ADC_MODE(ADC_VCC);
- \: u: b% A3 ]7 V6 n5 e9 d - void setup() {
7 O) x/ B/ o/ z - Serial.begin(115200);2 q6 l. ~5 d( v* d+ `' y
- Serial.print("\r\n\n");
: ~! p" M% ?# C6 V8 [( y! H* V - pinMode(2,OUTPUT);
: O) w; v7 ^5 e+ L8 U - // WIFI
% C# g5 T, C# [' x* H - WiFi.mode(WIFI_STA);2 N4 w7 {# e: ~& l
- WiFi.hostname("Sparkle");' S5 K+ z) H$ G; O1 m0 L. a
- WiFiMulti.addAP("wifi ssid", "wifi password");: f/ y8 M: o/ i9 ^% F+ s& j9 o9 ?* a
- int tryNum = 15;
: r7 }& n0 J8 _, b6 u2 w, ~ - Serial.print("Connect WiFi");
6 L, n! u: d( L - while (WiFiMulti.run() != WL_CONNECTED) {
# N: e c5 g0 n9 |' ]$ l, F+ ^& _ - digitalWrite(2,0);
3 [4 v* F" q$ z& r - delay(200);
: z/ k5 s. Q" j. A, a3 g4 \ - digitalWrite(2,1);3 Y& x' A+ U& F
- delay(300);
" q: k2 W! f4 M, C - Serial.print(".");
! s) ?1 I1 D# S- F; Q+ [ Y- T/ g - tryNum--;
9 A9 T [7 V7 n _7 Y - if (tryNum == 0) {8 k! E& t* s- t
- // 1min
% z- R$ N2 ?) v6 x, L0 L# h - // ESP.deepSleep(60e6);
/ \1 y# f' W" ` o/ c - ESP.deepSleep(0);) T+ j. S- x/ m; l* }5 a
- }
* U: ^, l! C, K# O4 y+ E& { - }" q- U! a5 N( F' g! l1 D5 }" W6 r
- Serial.print("\r\n");3 X3 L% P6 ^/ P8 I; i
- digitalWrite(2,1);
3 _$ ?" x& x, ~) X( @8 x) ~( u6 V - Serial.print("IP address : ");" B% y; q0 m- K
- Serial.println(WiFi.localIP());
, ~) X- T. I3 H I# ^ - server.on("/", HTTP_GET, [](){
5 h7 v' [! V( z! q& \7 | - server.sendHeader("Connection", "close");
0 c/ `; y* h0 L7 }. ] - server.send(200, "text/html", serverIndex);
9 \9 X8 t* _4 B/ O& ?' d2 {: m - });
, s8 [( O, [5 p6 G. Z - server.on("/update", HTTP_POST, [](){
+ b$ P/ Q5 `# C) | Z+ m - server.sendHeader("Connection", "close");7 i0 |3 U9 p% k
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 ^; k* F- e3 X8 [5 H4 a8 E- y
- ESP.restart();
4 N# j* t& |- k" { - },[](){. X) g' K8 l- I; R+ \- j3 }
- HTTPUpload& upload = server.upload();
! Z7 Z# y3 w X# c6 i& j - if(upload.status == UPLOAD_FILE_START){: Z1 t! R# F3 _1 A& {5 g1 {
- Serial.setDebugOutput(true);
1 l! @/ h& D* A+ D - Serial.printf("Update: %s\n", upload.filename.c_str());
8 i% s$ d9 R; V! E0 }( s% h; V3 [ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: [: U7 M2 p) C0 q( r - if(!Update.begin(maxSketchSpace)){
- H, X- w' I' }6 V - Update.printError(Serial);
8 ]2 V" j. p' }& W% I: w - }
2 i2 a' D: m+ i: P - } else if(upload.status == UPLOAD_FILE_WRITE){
) e+ {: i! M0 F) \( L: e - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
- b( _; K" V$ ?9 W2 o5 [+ e( | z* j - Update.printError(Serial);7 C1 \4 I t9 `$ p1 l
- }! ~- A$ I2 y. S W) Q0 Q
- } else if(upload.status == UPLOAD_FILE_END){# R& K4 n. O7 b
- if(Update.end(true)){
6 J' `! e# u& B+ H( { - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 \2 P0 A2 e* J1 n% M+ H
- } else {$ F9 \8 ^/ f* I+ r
- Update.printError(Serial);
6 o0 q& p* p" H4 w - }9 c; V0 J: L$ p4 e: n
- Serial.setDebugOutput(false);6 w0 k5 w' ]' X$ y
- }
2 m. w5 g# K2 k; f% p) A - yield();
3 N1 O& B4 i) `) m8 \ - });
" C) _5 E( [0 ~; l, { - * [. @! p6 X9 g7 {4 x3 k: G
- digitalWrite(2,0);
, Q" T6 Z5 O) x1 x' m - mainAction();
# A/ O: Z6 E' ]1 o' w - if (digitalRead(0)){
- M. W' A4 D/ x/ B- h* d - ESP.deepSleep(0);! |% Z d5 i+ @1 y1 ^$ [( G1 C( D
- } else {( O0 c+ Y: t* q: k
- server.begin();& n6 |& q& ?3 ^/ g; G3 l# K
- }9 O9 ?6 u1 E- Z Q
- }; S F$ D/ @: D8 S. a# D9 Y; G. `
- void loop() {
$ B, C8 F' d' q5 M - server.handleClient();+ h% s+ i4 c8 q) K4 g
- delay(1); j0 F& \$ ]; g! r7 c$ g$ {. B
- }! Q0 f% t1 O; J
- String doGet(String url){
$ R$ a! x0 Z( K0 X" o- `4 { - if ((WiFiMulti.run() == WL_CONNECTED)) { ~3 w Y9 {: C) I( w& l7 H# I5 Q
- HTTPClient http;! c! R) v$ e+ }: B
- Serial.println("[HTTP] begin...");1 {4 M W, g/ h/ E4 I
- if (url.startsWith("https")) {7 b: h# ?6 m. ~9 e: M& s* C
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! E9 | Q' ]7 j6 j
- } else {
. ]1 E O' i) e) ]/ X: l1 p5 H - http.begin(url);9 \2 {6 W6 M# Z% L/ f
- }
U" P: S" N' D/ c7 n+ N - Serial.println("[HTTP] GET...");
$ B: [& V# Q( O* F1 a - int httpCode = http.GET();1 y7 G! v1 @' s# d
- if (httpCode > 0) {$ @0 x) W1 m9 B& p
- Serial.printf("[HTTP] code: %d\n", httpCode);4 |4 X4 l' L8 @+ A0 c
- if (httpCode == HTTP_CODE_OK) {$ w# _0 j% J$ U/ t+ r
- String payload = http.getString();
! ~9 L8 r" ^! M8 a6 o( _. | - Serial.println(payload);
% g* {5 X* f3 V0 W! @& `# S4 D - Serial.print("\r\n");: g* @. g/ J. Y/ J( ?: f% T$ A. M
- return payload;
; T) W& s- n6 a- l+ Q. C - } p/ l. p: U w4 K! U1 \
- } else {! S5 S/ H0 G, N) f, g
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! z, Y, |, B# w% F5 b - http.errorToString(httpCode).c_str());) H2 ?) Z3 ]. r! e' ?6 q
- }
$ V& |- m: K" A1 o$ `: s f - http.end();
( ^7 O) n/ |' N N& ` - return "";
- H/ Y/ o; u+ h3 y1 H+ N* k0 p - }; t! D6 `' a( _. l _
- }: W: L6 t, N' l9 K
- void mainAction() {
: d2 t& b7 M. v' S e - // 发送请求( m- c5 M8 Y8 S/ [
- doGet("http://google.cn");
) [! C2 p0 A K' k6 P& N, u - }
4 u3 h. G, s5 |, B t* V
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