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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)
" n7 U. n/ }5 K" x- #include <ESP8266HTTPClient.h>2 L C4 [ A2 R
- #include <ESP8266WiFi.h>
2 O/ c8 A" {7 V$ H9 k$ S. M: q0 Z - #include <ESP8266WiFiMulti.h>+ [" A# D/ E" j# U4 C2 `" q' p4 L
- #include <ESP8266WebServer.h>
: @9 w5 ~" ]9 J2 B - #include <arduino.h>' Y0 i$ J/ k2 }' @
- ESP8266WiFiMulti WiFiMulti;
# M, C. B, T8 z; Q* r! Q4 r6 S - ESP8266WebServer server(80);
' M9 f5 A& ~' W" V ?: S: U9 e- n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: Z: ]0 ?+ ?! s3 L& P, ` - ADC_MODE(ADC_VCC);& ]3 W- y) w; G5 ~1 X: H2 H
- void setup() {
( Q1 K$ }; F- b - Serial.begin(115200);
! @! W( z- T% O5 p( ~ - Serial.print("\r\n\n");( u& `' |2 i6 y
- pinMode(2,OUTPUT);# {7 l* d! l4 }+ H7 P. c1 H0 }$ s- O
- // WIFI# h. e" o' Y: B+ G. p$ F# c1 i' E" L
- WiFi.mode(WIFI_STA);3 k% c' ~: B* K
- WiFi.hostname("Sparkle");$ L9 d+ e5 I% X0 {- a7 Y; g; y# j1 y
- WiFiMulti.addAP("wifi ssid", "wifi password");8 e' u* R$ P: P6 ?
- int tryNum = 15;; ~7 {4 k) C9 _7 ^3 k, k
- Serial.print("Connect WiFi");4 n! J$ z$ l8 a5 y# d
- while (WiFiMulti.run() != WL_CONNECTED) {1 m" y1 I- I" [- b' F1 l
- digitalWrite(2,0);/ b3 x$ L* @% p7 V. I
- delay(200);
1 q6 n4 t$ T: r3 p0 `0 D2 i - digitalWrite(2,1);
5 X: h' G+ r' w$ d. D3 A$ x0 b - delay(300);
. L, d1 V- r) C% T \5 x7 G, w - Serial.print(".");
5 p- g% m# @- ]# H - tryNum--;5 T8 C9 E" `$ s6 s
- if (tryNum == 0) {
: w9 J% Y+ L" G' z' M2 V! j - // 1min1 p5 y8 H# u+ O+ C2 z# r
- // ESP.deepSleep(60e6);# s( L6 B& {5 x3 O
- ESP.deepSleep(0);, M: w* ~. [( \ E6 E& k
- }1 ]- m$ y. `4 b& ^3 j' S
- }1 m4 V+ b2 W# \. g) c9 P3 I
- Serial.print("\r\n");
3 ~" u1 L# l7 H6 K% w - digitalWrite(2,1);
7 J+ I$ j3 d' g' o1 \6 }3 g3 B - Serial.print("IP address : ");
) @, e7 V) j/ B7 y - Serial.println(WiFi.localIP());# X, z# j+ s2 |
- server.on("/", HTTP_GET, [](){0 L( {7 K% F* _" s2 A3 G" D# _
- server.sendHeader("Connection", "close");
* t3 S# G' V+ E! z: B- |; g5 s" U7 V8 O - server.send(200, "text/html", serverIndex);9 Q* s3 s) j$ l2 T' j
- });" k/ k1 ~% k3 r2 q, n( \ X
- server.on("/update", HTTP_POST, [](){* w+ u9 P6 q8 b
- server.sendHeader("Connection", "close");5 I; O+ l( v5 `5 |: G5 K
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
( Z; T" |1 Z, L2 w# V5 [' l - ESP.restart(); J1 z8 N1 V- [! R' ?/ c: ^
- },[](){
; b s9 t) j+ u* d! h7 X0 t - HTTPUpload& upload = server.upload();/ T. X% m o4 E: Z- {' ?
- if(upload.status == UPLOAD_FILE_START){- B4 k, J1 R$ T4 C: P
- Serial.setDebugOutput(true);
3 s4 A9 s- p+ B+ |1 }' f - Serial.printf("Update: %s\n", upload.filename.c_str());" z0 Z" g y: ]. U. Z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! C; {4 n. N: l9 h6 h( Y& s - if(!Update.begin(maxSketchSpace)){. D" P/ }6 t6 r
- Update.printError(Serial);
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- } else if(upload.status == UPLOAD_FILE_WRITE){; B' `2 e! j; e" H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 \* C- @5 f. `& J3 t8 U0 {0 H: k4 M% y
- Update.printError(Serial);4 Y% _$ S8 {7 Y& X" y
- }; [2 N* x" @4 `1 z" V* T) v
- } else if(upload.status == UPLOAD_FILE_END){) { s& Z0 Q# l0 F1 J; e- v
- if(Update.end(true)){
4 p! Y% L! A4 w7 B. J6 d) j5 h: s - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 Z% L0 D9 y" l' Z" Q9 x! ^ - } else {( |5 o0 `/ O2 a
- Update.printError(Serial);/ S3 o0 Y3 w5 N$ l g7 m& `
- }
: B) z% x9 D* d& Y3 H! v8 X- P; d5 s - Serial.setDebugOutput(false);
1 @; D0 Y) ]! w# H3 x1 t - } ~0 _6 w8 f$ ?: D1 c8 x8 J
- yield();
. I- _) ?. z4 T z" X - });6 k5 z/ a- g+ s0 J0 Y, Z5 [
-
; P0 Q' F$ J! c3 l S/ B- }% @ - digitalWrite(2,0);
" s6 j! c7 s& g% X" { - mainAction();6 J* f$ l6 n4 b5 P
- if (digitalRead(0)){5 x1 j( S1 B. ?5 `9 H
- ESP.deepSleep(0);
0 R2 _: u# Q6 y( L" P, J - } else {# ^8 w R* v) x
- server.begin();
* @- n7 V4 d4 K, r0 p - }' p/ e# Z* d* s$ S$ x" ^0 ^. U
- }' I& t# w0 J+ U. V7 @) M0 |% ^3 g
- void loop() {/ F7 Q4 J5 t f9 i6 ?. ]5 c8 ]( _
- server.handleClient();
! }% _: t9 D6 S2 g& U - delay(1);: l1 {+ @1 z/ F+ j1 v
- }) j5 p4 C4 L" ]2 m3 w! g0 e1 G
- String doGet(String url){
' S' V6 j6 z( G/ p/ \ - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 L/ [$ b3 a6 [* e+ T - HTTPClient http;) N- W3 O3 r3 v7 \8 X
- Serial.println("[HTTP] begin...");1 b7 a: }& e6 o7 J# C% X$ h
- if (url.startsWith("https")) {
/ s# M6 O* n* f* v0 k& _( H/ D - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 w0 J. ` v' J) v0 a - } else {4 u+ L2 L+ I, Q; Z D1 t
- http.begin(url);
' z: f7 z1 h6 S6 |( e2 K, J9 p - }
- {7 J. J. J6 S! Z5 L& O - Serial.println("[HTTP] GET...");/ R, W2 ] x! I6 z
- int httpCode = http.GET();- J) r, K! r: `% L9 K9 g- K/ R
- if (httpCode > 0) {
4 R) z4 ~5 j( G( s0 x) d' `) N - Serial.printf("[HTTP] code: %d\n", httpCode);' f& Z2 q" m+ t# b- j) _
- if (httpCode == HTTP_CODE_OK) {% `! j; x v I( t# s
- String payload = http.getString();- A }9 c. i2 t+ P* S) T
- Serial.println(payload);5 d# X v9 g/ V* K4 {9 f! q7 R
- Serial.print("\r\n");% j! n* g* d( T8 [8 v, f. S. Y" Q
- return payload;7 l+ e/ ?3 M) Y4 |) s; f) @# h
- }/ n* @+ l V( S9 X: j
- } else {7 C- C7 N0 w" e/ L
- Serial.printf("[HTTP] GET... failed, error: %s\n",
7 Q5 \7 J2 C' p8 w. o9 { - http.errorToString(httpCode).c_str());6 X- \0 p% M. U
- }' q. Z. o1 L q- Y% b/ O- O
- http.end();
5 u5 `% t6 o7 A& ` - return "";6 J3 ^5 \$ V5 a: U0 n0 t" X
- }
; Q3 B/ m( ]/ ?: m. t8 C7 T - }
. D3 n: m# `) o G1 I/ u5 x - void mainAction() {
1 r- \8 X0 @- q; \+ o* L - // 发送请求+ p7 h' ` Z8 t& \$ Y' {: W/ Z0 g
- doGet("http://google.cn");6 B2 s" D# Q9 C) j
- }; H, M# t( q/ [: v
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