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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)
; J- |' ^2 X+ g5 }$ A8 Q- #include <ESP8266HTTPClient.h>
) d( j N8 S" s; { - #include <ESP8266WiFi.h>
. J# T* i* w7 f$ o- ` - #include <ESP8266WiFiMulti.h>- |2 m) M4 X/ w2 B4 h
- #include <ESP8266WebServer.h>
: e" j" c: O. s2 ~. Z$ x6 i5 U* J - #include <arduino.h>' z+ Z' [$ ?$ o0 ?* N3 N; t9 f9 i
- ESP8266WiFiMulti WiFiMulti;
2 S7 `" I6 J8 m) e, s' U - ESP8266WebServer server(80);; }2 P+ j# A9 Z% Q; Q" f* d
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% ^$ W" `& m$ p; ]4 I% P. X8 y4 H
- ADC_MODE(ADC_VCC);
7 s! u) }# z9 [3 W/ { - void setup() {
/ a: K+ D9 O1 Q. V7 i' | - Serial.begin(115200);
2 n4 Y: e1 P, u7 [: W+ I - Serial.print("\r\n\n");2 j W. d& r0 n+ l
- pinMode(2,OUTPUT);
4 ~( P: J O2 G+ L/ ~. s - // WIFI3 O- k: I8 I: z
- WiFi.mode(WIFI_STA);- W# f+ T8 t6 r, U4 w n
- WiFi.hostname("Sparkle");
+ a- ?7 N* `9 h - WiFiMulti.addAP("wifi ssid", "wifi password");* I6 e" H+ N4 m, G, o. ~( E
- int tryNum = 15;; x- q- k' D( f, t
- Serial.print("Connect WiFi");
4 P% m% H# C& |9 G# o$ @ - while (WiFiMulti.run() != WL_CONNECTED) {
/ {6 `1 f. F/ T8 d8 o6 L9 V6 d! a - digitalWrite(2,0);0 z# f5 w2 m7 [ z
- delay(200);
# D: J7 T5 L! p - digitalWrite(2,1);
- L- G: D% T b4 N& Q - delay(300);
. |8 `2 g6 k* g- ? - Serial.print(".");
; a3 L3 X& v; V7 c, @0 J - tryNum--;
, m* K4 H# D0 k! R t' H( e - if (tryNum == 0) {
( w" |' H" r& v, w4 ` - // 1min$ {; G# u3 |8 Y h
- // ESP.deepSleep(60e6);- o) H3 Y7 f! [
- ESP.deepSleep(0);
2 T* t. M# r( c$ T+ r4 T, Z - }
$ f: f- M' ~" n& Z9 d- O - }
' N C" }; F& ^9 M6 F, | - Serial.print("\r\n");; Q$ w& Q% l8 _0 N$ ^
- digitalWrite(2,1);
4 A: a5 ~6 ^3 C3 w; s+ C2 J' _ - Serial.print("IP address : ");$ [4 S/ o; x0 z8 {% C+ b
- Serial.println(WiFi.localIP());
2 P4 H/ \: s* Z/ z3 v; b/ k$ ` - server.on("/", HTTP_GET, [](){ p7 G! w0 s! m$ C5 q. _: {& j
- server.sendHeader("Connection", "close");
+ S G0 L4 v0 ?7 m. Q - server.send(200, "text/html", serverIndex);) }. w- G0 W8 D
- });1 j3 C6 w _! N, {, C+ M- @
- server.on("/update", HTTP_POST, [](){
/ ^, a% M1 v& L& L2 d - server.sendHeader("Connection", "close");
, C6 H1 t) Q' M/ k - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 B6 `8 j$ z3 L( w
- ESP.restart();
# ^ v" N5 n: m6 X - },[](){2 [$ Q9 H& A4 w7 R, {3 W, p
- HTTPUpload& upload = server.upload();
1 O- g9 X) E6 a1 s - if(upload.status == UPLOAD_FILE_START){
0 w' X. i5 {/ n: X - Serial.setDebugOutput(true);6 ?* {+ |! | g( Y; o# [0 R {8 P
- Serial.printf("Update: %s\n", upload.filename.c_str());7 i/ Z$ G4 G% Q( ]: n: `
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: d8 _* a+ N% `, U - if(!Update.begin(maxSketchSpace)){ c5 H2 a$ F1 d' {" m1 K
- Update.printError(Serial);
S' p$ v2 a1 M6 F' Z% s - }5 t: L$ D4 T& y9 m
- } else if(upload.status == UPLOAD_FILE_WRITE){, F% }, {# p, @ n6 ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 [% U! y) E4 {
- Update.printError(Serial);9 w/ p+ S# {2 D/ Z
- }2 p* b) e) C4 [- _1 j/ o2 y
- } else if(upload.status == UPLOAD_FILE_END){
# Y$ R( m/ W: f - if(Update.end(true)){
: m5 h$ K' w0 i7 S6 Z: p - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. q& o3 y1 l" L3 h. I2 f' ^2 |
- } else {; ?& d% b$ [3 p7 j ?% w7 y! p
- Update.printError(Serial);* e) ~" y1 k6 u3 w# v1 [- X
- }
$ q& {% {" e- Y9 K ~ - Serial.setDebugOutput(false); R* k+ m6 h" }! O1 K/ z0 `
- }; c8 P% l6 U+ @1 w6 b& I
- yield();# H3 g6 F- V: |3 E' }5 K1 O; M
- });* v) j9 ?' G$ d: j7 X; P
-
8 Y% I! Y" Z1 R/ V8 |1 w - digitalWrite(2,0);5 N& }5 C& u8 b4 @. X
- mainAction();
+ u* P- _5 ?+ k* w - if (digitalRead(0)){
; i6 J. s7 J) f, c" Q& y% J - ESP.deepSleep(0);( ~: |9 B5 l$ k' { d: n
- } else {
2 L9 R* J. O1 H - server.begin();
B) V7 d6 T6 Y9 r Q% f9 f4 \$ |, Z - }
; _& @" D# Y1 \# {+ z: Q' V. v - }. _1 D$ @! Z4 r. b$ b
- void loop() {1 L; Y% E% Z* P3 U. D
- server.handleClient();, l- J( k5 H4 o) P
- delay(1);
# O2 y0 y' ^, w6 ]/ z9 S# H n - }7 k3 X) g# Q" J: c
- String doGet(String url){
v& e$ s8 Q- \5 L - if ((WiFiMulti.run() == WL_CONNECTED)) {
% s& z$ X! P$ T+ g - HTTPClient http;
& i7 k/ T9 N) q9 C, h3 T1 f5 O+ K5 n - Serial.println("[HTTP] begin...");2 a9 F6 u! X/ ]! j/ `
- if (url.startsWith("https")) {
0 b v: L( A: H - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. F! m- ]6 a- `8 t" ^! D, j) d0 X - } else {4 ]2 B' Z% u4 B
- http.begin(url);
3 k2 ~8 q( g5 `9 b7 d% U - }$ @$ d& R/ K( X1 I) v
- Serial.println("[HTTP] GET...");9 |" D$ V# s& v; }* g% l! p: s- E5 l, i
- int httpCode = http.GET();
6 q& h$ ^& \. I2 w5 d& D - if (httpCode > 0) {
0 t4 |) {* n5 b+ m - Serial.printf("[HTTP] code: %d\n", httpCode);
2 E- z* Y5 }+ C( ` - if (httpCode == HTTP_CODE_OK) {& D; i% _2 U* |. }" U+ q( W- ^
- String payload = http.getString();
5 C- S' Z6 N- H3 V3 D - Serial.println(payload);: ^) W' w# n9 P3 v. @% x
- Serial.print("\r\n");2 @8 I: u3 W# o& K
- return payload;
B9 f. {2 R, x* b0 ~! s1 b0 k7 F - }
; ^; g0 |* _: p$ ]/ U5 N# E/ p - } else {& T! G9 J2 j- p |
- Serial.printf("[HTTP] GET... failed, error: %s\n",* Z8 A% [4 l* U% C& d! k, h
- http.errorToString(httpCode).c_str());
% g# j% v" F: P0 r- I - }
e, M3 T" s. Y4 \% x - http.end();
& d+ }. O' r& A2 b3 q1 @% ~# f - return "";
) _8 s" ?7 {4 d% O5 g, x5 u - }2 G1 ~5 \5 E2 L; E
- }6 s/ w+ r8 }% ?- n3 }
- void mainAction() {' `6 L# Q4 R! L6 u
- // 发送请求
3 j5 C$ M/ L* p% l8 U - doGet("http://google.cn");
- X& a, g' C( P+ u1 |4 X - }; ~2 l+ N4 i# r) L
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