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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$ d8 ^2 L. c5 d$ ~) R
- #include <ESP8266HTTPClient.h>
/ x% G+ W2 n) n' L9 x - #include <ESP8266WiFi.h>' A4 h3 i- i4 D$ }& j
- #include <ESP8266WiFiMulti.h>* [! h; c* |: X' ^
- #include <ESP8266WebServer.h># Z1 h$ | x, d! G! ~3 S
- #include <arduino.h>1 E5 T: r3 S$ H1 s5 Z" T1 y
- ESP8266WiFiMulti WiFiMulti; u% m6 W+ [, Y- U
- ESP8266WebServer server(80);$ {# ~# L( [- Z& u5 Z5 l
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 D$ V7 z# f, `0 g$ C$ c) q
- ADC_MODE(ADC_VCC);
5 {" k3 D$ e& X4 l - void setup() {' _( Z) g8 s9 c+ m
- Serial.begin(115200);- P" e* q. B4 t- e
- Serial.print("\r\n\n");1 Q7 V' ]7 j' t. d& P" D
- pinMode(2,OUTPUT);: u8 G( [' g. ]) Z/ y
- // WIFI# O+ z- O& ~$ B3 |( f+ `7 M4 i2 I2 p
- WiFi.mode(WIFI_STA);. y4 A* K8 c0 Y H9 K7 G0 J7 g: s
- WiFi.hostname("Sparkle");
0 v0 n0 l$ O% o }% C- S5 B0 I - WiFiMulti.addAP("wifi ssid", "wifi password");' i' B# l3 n3 `2 f9 h. B
- int tryNum = 15;
; H) t* T) V6 }2 o - Serial.print("Connect WiFi");; B- B2 D* O; k4 ~9 A. V
- while (WiFiMulti.run() != WL_CONNECTED) {
- Y$ p2 ~7 S$ G. a5 K - digitalWrite(2,0);, D, f: v+ @" _$ t8 h; i/ H3 _, ^1 F
- delay(200);
" n$ v- f$ `3 D+ i: E2 K - digitalWrite(2,1);8 d$ h# N" Z2 v4 S0 c+ s% `
- delay(300);
/ ] A, `3 g9 q& i5 w W - Serial.print(".");
+ {9 A4 Q' z$ p+ g7 C6 ^. w @6 K - tryNum--;
: j; Y, o7 R! `. U( j - if (tryNum == 0) {; [, l- c7 A. I
- // 1min
$ Y' d0 `" k5 A$ ]9 J) Y0 I; p7 m - // ESP.deepSleep(60e6);( P0 y2 J% i. z3 P# f" x
- ESP.deepSleep(0);6 f4 V2 n' ^! L" v1 |
- }
' u+ b4 }0 \9 Y: l2 `# { - }$ \ E, I% L. O, Y8 Q9 a3 Q5 o# K
- Serial.print("\r\n");: `: x: Y5 |% q5 K
- digitalWrite(2,1);
# m: p2 s p4 O! k8 c - Serial.print("IP address : ");
0 I0 V% f3 {$ \( s) m - Serial.println(WiFi.localIP());
7 q# k* T& }; n5 j. G - server.on("/", HTTP_GET, [](){
) L5 p( {" a3 T. Q/ [ - server.sendHeader("Connection", "close");
5 L/ j& S! k3 M$ |0 Z) q% A - server.send(200, "text/html", serverIndex);) k q1 _+ z8 V6 W2 T: N
- });- C" @" G! e0 i. ]2 ~/ {
- server.on("/update", HTTP_POST, [](){
, g @7 a+ d# X) K$ { - server.sendHeader("Connection", "close");
0 m$ f/ U# A2 f1 N0 m5 D - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( S1 |/ v4 `' g! }4 \: b
- ESP.restart();
+ D$ }% |# w( D+ V$ y s - },[](){
9 c2 V' l; f4 t# i# R( ^ - HTTPUpload& upload = server.upload();
+ R9 | Z% _$ B1 H, h - if(upload.status == UPLOAD_FILE_START){2 m* J8 |: c9 L! b" g9 Z
- Serial.setDebugOutput(true);9 f, U- w3 U" T4 P
- Serial.printf("Update: %s\n", upload.filename.c_str());
: m- X* u% a4 H+ l. I0 Z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ t3 Y* s% T$ m0 _
- if(!Update.begin(maxSketchSpace)){
7 Q! ~* R1 ~5 Y - Update.printError(Serial);* |8 [- C2 B- ^( B
- }
7 D8 w. G |1 O# g( b' v4 @/ g* { - } else if(upload.status == UPLOAD_FILE_WRITE){/ w- _+ S f# P0 Z; i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 V5 P# A: w9 }+ z: E- w
- Update.printError(Serial);
& t. j1 E+ b' E! r3 J. D4 d% F3 l8 H - }! V2 K: _ ^3 }. Y- e6 H
- } else if(upload.status == UPLOAD_FILE_END){
! C6 Q. o) {, ~4 q; d - if(Update.end(true)){
# [/ Q4 f! F- u+ z& k: |5 L - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! d, j$ a; P* }3 m& t3 O+ p0 O5 O - } else {: M) d9 S9 F, N0 h/ p$ ^ @
- Update.printError(Serial);& x, {, @$ z6 c/ [5 C+ C6 v
- }/ C+ y7 O! p7 \, u
- Serial.setDebugOutput(false);
1 F: O" E3 k$ a* J! {8 w3 r$ ~ - }
0 \- ]' T/ r8 M1 U2 ] - yield();1 L k6 l" ~+ q; Y: i) a
- });
0 A% f- t% ~/ L D+ U+ f - , i7 u/ k9 |. W2 i2 r7 T
- digitalWrite(2,0);
3 [6 A/ l9 C& [1 b Y% R" H - mainAction();: C% j: i. N4 ]( z
- if (digitalRead(0)){
5 Y* e. g3 s7 v% T4 a - ESP.deepSleep(0);, f3 j5 f; u1 G$ J1 ~( @8 o
- } else {
7 F n7 j. k { - server.begin();
4 y3 Y1 O7 L6 N3 j$ h7 @; J - }0 F- |) {% R: e8 u; [9 ?: s" }
- }# C- m% I8 O+ r/ ^. X9 f
- void loop() {3 t n2 j- E& m8 Q* X0 i
- server.handleClient();* k- a$ ?6 Q/ I" Q$ W9 t( K
- delay(1);8 b# g5 T3 ]* ^* r+ u& J, h" I
- }
2 f8 K0 }: [5 \1 ^0 U" b0 _ - String doGet(String url){
5 E8 X' S0 B4 v" z& ?8 N - if ((WiFiMulti.run() == WL_CONNECTED)) {
: L5 v* F' @. e) [% w' F - HTTPClient http;3 i; D" r4 Z8 g1 @2 s1 W
- Serial.println("[HTTP] begin...");' ^" Y2 Q) G0 f
- if (url.startsWith("https")) {
) b8 h/ P; z6 {( d" t1 T4 }; o - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# O( |9 Q7 b6 W: X. W
- } else {/ N& s0 g% P0 U- @( S7 Q4 L
- http.begin(url);# X7 r. d0 N: V2 y- w* {) l
- }
, @8 ^& @9 z. b8 i, b2 J - Serial.println("[HTTP] GET...");- a) a2 B3 g0 W# E6 `8 c9 M( E
- int httpCode = http.GET();+ Y. W: ^& Y0 B5 H
- if (httpCode > 0) {
1 y/ d2 ]9 H" H# E - Serial.printf("[HTTP] code: %d\n", httpCode);
7 l& @; M2 L8 g: k4 G - if (httpCode == HTTP_CODE_OK) {
8 C: d6 X9 K H: @5 o - String payload = http.getString();; z9 k6 {) J2 g5 v2 @: M
- Serial.println(payload);2 n! W/ b$ g9 O4 y
- Serial.print("\r\n");- F% H0 C$ F+ ]' e. N/ t g
- return payload;
3 r$ [7 H: H1 B8 C" n9 R& p2 \* O1 X - }6 }9 F% G# u3 b0 S% t: w+ l! U$ X
- } else {) i" K1 @' N5 \
- Serial.printf("[HTTP] GET... failed, error: %s\n",; R) y6 ]& z/ I4 T# X/ U* [/ Y
- http.errorToString(httpCode).c_str());! ^, ~" A8 a3 m" Y% Z1 }
- }
2 J* W( P% @0 t: X - http.end();
3 u. Z+ G0 U! i* p" L - return "";+ f0 y7 T' y- ~
- }: g0 K! T' z$ S9 _* d9 _
- }' ^5 n$ S* G& H% i3 U
- void mainAction() {0 ~4 L* y; g" L. g; x
- // 发送请求
% N8 ~4 @) s. x) [ - doGet("http://google.cn");
: g+ b$ e& l* ?" R1 U - }7 ~4 k2 U* I1 L. z
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