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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): D0 w4 J e) B, F# I" _8 `
- #include <ESP8266HTTPClient.h>( k s; N4 c% b1 [. r0 z9 }
- #include <ESP8266WiFi.h>, V) Q7 G5 c. O- Y- f8 n1 B
- #include <ESP8266WiFiMulti.h>
) {1 T D1 _: { x& S. P3 b - #include <ESP8266WebServer.h>
0 x9 b5 J/ v( \9 L/ D2 y - #include <arduino.h>
$ u6 e! Y. u# X. Z" @ - ESP8266WiFiMulti WiFiMulti;
9 z5 G5 E) G% L! A! y) R - ESP8266WebServer server(80); B& j* G4 Y% ?- J v1 O4 A: S
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 h' j; O# P- B* v; H9 _
- ADC_MODE(ADC_VCC);0 n" \0 B7 l7 f, g# U
- void setup() {
3 x) c, C" I/ W7 l% G0 A) A- N - Serial.begin(115200);
( w- Y0 i" P) P+ ], k0 P - Serial.print("\r\n\n");9 L7 c- H! B3 y0 ^, J
- pinMode(2,OUTPUT);8 r% a* N B9 T* e
- // WIFI V( \7 F9 o1 v( X
- WiFi.mode(WIFI_STA);
5 ?. V1 q7 _$ g# c6 @! t - WiFi.hostname("Sparkle");
l+ ]* t7 |" h3 W! c5 Y5 | `/ W4 E! r - WiFiMulti.addAP("wifi ssid", "wifi password");
8 {4 b W; O9 y( T/ a0 W - int tryNum = 15;" I6 Q5 f2 a$ l; V. X$ M! @
- Serial.print("Connect WiFi");
) X+ l, q9 V4 V* O1 t2 J - while (WiFiMulti.run() != WL_CONNECTED) {. h: @$ B3 j! i5 |- {' Q
- digitalWrite(2,0);; W' n& X' t3 P- W! C0 y# H& q
- delay(200);( R( M F" R1 b8 W
- digitalWrite(2,1);
- z J4 s, R6 ]+ i6 G - delay(300);) K* G: Y/ n- r
- Serial.print(".");/ r3 m8 C* h% }- I5 k4 k) x# D j
- tryNum--;
* Q! |/ g6 W- R0 p- [ - if (tryNum == 0) {! G) P: {3 t! O! a+ Y! w
- // 1min' M* S, {% Q8 d" X( M
- // ESP.deepSleep(60e6);' o% P0 v) P" n# c+ m/ k
- ESP.deepSleep(0);4 i2 n: l5 ^: j5 G5 Y4 P' l' c, x
- }8 ^2 H6 P9 a( h/ T' S- P
- }# Z8 P( R# |! I- u( y. X
- Serial.print("\r\n");
6 t( Z; h a% H3 b - digitalWrite(2,1);
% C$ c) z5 B; p - Serial.print("IP address : ");, w4 o* s9 W# r! u: I2 g
- Serial.println(WiFi.localIP());
- f. H3 _( x c5 m# Y - server.on("/", HTTP_GET, [](){
; Y U( ?$ B) b- W# U - server.sendHeader("Connection", "close");4 _% i$ I( I2 C: \/ u8 M
- server.send(200, "text/html", serverIndex);4 c% S' h! A6 x1 e9 \
- });) |! j9 \" A+ u$ A- m; v
- server.on("/update", HTTP_POST, [](){' I7 B; K; w& [1 _) Q
- server.sendHeader("Connection", "close");
+ K; z+ h+ Y/ R6 U K0 ^2 a& G: R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
Z9 ]3 o8 _4 U1 q% \1 g - ESP.restart();
% ~$ Z6 H0 ~. m! G7 i4 }. H1 C - },[](){3 [+ {) T$ j/ ~/ U% g p. J8 L- h
- HTTPUpload& upload = server.upload();/ k, T2 T% L, G2 A" i
- if(upload.status == UPLOAD_FILE_START){# P( M! q- W1 ?9 P& t, a0 p( A
- Serial.setDebugOutput(true);
! }; T3 V S& A" O+ _9 t3 k& [ - Serial.printf("Update: %s\n", upload.filename.c_str());# V4 i; d% M# l$ D/ U8 X
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( i, R/ j; M( O: s" E - if(!Update.begin(maxSketchSpace)){
/ s9 A1 D- Y0 G* X - Update.printError(Serial);4 t1 [1 m8 ?, t5 t* A3 D r
- }
' w% W; P# l, L5 Y# c - } else if(upload.status == UPLOAD_FILE_WRITE){; F1 v4 ^) |2 |1 {# E1 [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 ~6 M0 t) c% f
- Update.printError(Serial);& j# p H' |" Z, ?( `' Y6 H
- }
4 i' F! A& _3 I( d - } else if(upload.status == UPLOAD_FILE_END){/ t% Y7 E' `8 H" `
- if(Update.end(true)){
& T& L' y( ?1 E* O/ u - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' o w) v% _' Y8 X2 Q+ @/ o: R1 v - } else {
" u2 V# r. ~ Q - Update.printError(Serial);" b: f w, |* m; f! E7 j
- }
% v; X3 i& D/ l( U$ i& x - Serial.setDebugOutput(false);7 {* [/ [7 t8 y# r% X9 k
- }
0 b. K) b f& p" R6 M) R/ m3 U - yield();
. o# |- n0 b0 W - });
5 m1 d7 Z! p6 e -
3 o }; R6 K5 |7 E) q1 G5 F) \ - digitalWrite(2,0);
% r2 l# |) c! ^+ z- R - mainAction();
) j% a( Y% n/ W4 P- r1 b - if (digitalRead(0)){ D/ N$ e9 s/ w$ X' [: C4 i$ W1 M
- ESP.deepSleep(0);4 e2 [) f5 ^) b" Z
- } else {
1 Q/ ~& @$ g# G% e6 \ - server.begin();
1 U3 t5 d9 x" K' \5 i& m! s - }
1 C5 I/ a; I3 b+ v! G/ I: j& s" B - }: m5 {$ s; I4 V* P- M
- void loop() {5 M8 n' g+ Y# h" j" A' z
- server.handleClient();
3 E( U( C7 {) s$ V( ] - delay(1);
. Q& Y* ~7 C- M9 H3 @9 V8 Y - }1 s6 n) l6 P( z& `
- String doGet(String url){ {5 I% W7 o' O1 n
- if ((WiFiMulti.run() == WL_CONNECTED)) {" y# ~. l( E, {1 i# U$ R
- HTTPClient http;
8 x x0 ?7 |2 u - Serial.println("[HTTP] begin...");
# l% ~" Q0 b9 v- q - if (url.startsWith("https")) {: [" X4 z8 C, N" o8 q4 a, u
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. ?3 r7 r9 ~7 t% \3 U5 P1 } - } else {. n, V. T* j) ?
- http.begin(url);5 v4 W r' l5 V$ E3 _
- }6 ~9 _9 ~8 D0 c+ ^
- Serial.println("[HTTP] GET...");
; S+ X) o0 y) b3 T - int httpCode = http.GET();& P4 U- e# ^# }
- if (httpCode > 0) {
* Y5 U$ X7 `. T - Serial.printf("[HTTP] code: %d\n", httpCode);5 C8 v, U7 P+ P2 e
- if (httpCode == HTTP_CODE_OK) {( I! n& Z, _; S& X
- String payload = http.getString();
: L8 C0 P& H, m' i* x# ?+ x4 | - Serial.println(payload);
! _! F/ ? Z* k, {4 R9 ] - Serial.print("\r\n");
- J, ] y2 Z7 i: Y - return payload;& @% R- r; h+ a; K. ^! h
- }# @! J0 u& R( b1 T( Q
- } else { j# D+ \9 N |% q) _5 @7 t. `. m( e
- Serial.printf("[HTTP] GET... failed, error: %s\n",
4 o# Z$ l0 n. N' e) G# x8 }$ \ - http.errorToString(httpCode).c_str());; W# n. b% `* M) H
- }$ }9 x w& Z' @. x0 V, B
- http.end();
; N& v) w. P* w# R9 g - return ""; _3 n) @, g' L9 k
- } W J S6 s# [6 p; R0 U6 a4 F5 L+ c
- }. a1 x' E! i8 g1 r' T; n& n3 a! \9 d
- void mainAction() {- N0 }& S2 V! f9 u/ T8 H3 M
- // 发送请求
9 P+ P5 t' S$ D - doGet("http://google.cn");# u! e* Z `2 E7 l; \+ x* V
- }
; v: j: E+ E1 a' P) n9 ^
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