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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)
% n6 ]6 Q' b' v" _: M- #include <ESP8266HTTPClient.h>+ e9 p$ y/ z# y' i; P1 R; q% M, Q+ X
- #include <ESP8266WiFi.h>5 H+ _3 B+ Q9 f
- #include <ESP8266WiFiMulti.h>! ]$ u. X! E$ L; b \0 S5 ^% a3 g
- #include <ESP8266WebServer.h>
8 `. F! o! b0 W$ u3 Z7 W - #include <arduino.h>
$ x& [7 s* s! G - ESP8266WiFiMulti WiFiMulti;
, X1 h& A% m+ H5 ` - ESP8266WebServer server(80);$ B4 [7 `* \0 w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ l$ {; _7 P, R! \, N
- ADC_MODE(ADC_VCC);
' F, ?9 X% C" b3 H0 U - void setup() {, P4 T! v0 W( h* y
- Serial.begin(115200);
% H: z7 {) E+ V - Serial.print("\r\n\n");7 B& W/ W f- H9 \2 p
- pinMode(2,OUTPUT);, v# B4 p5 \! O4 [
- // WIFI
% |$ R6 b& C* B, P( ^% V - WiFi.mode(WIFI_STA);) e: ? S) P P
- WiFi.hostname("Sparkle");' u! a& c& y2 n- `
- WiFiMulti.addAP("wifi ssid", "wifi password");! q( m0 U: N6 A* U2 P4 {/ t
- int tryNum = 15;9 ]; `2 i, T* s
- Serial.print("Connect WiFi");4 Z: i! g' g/ T; S" N
- while (WiFiMulti.run() != WL_CONNECTED) {
g" r8 o# h8 } i - digitalWrite(2,0);
1 W/ |/ D* O: e5 `* r - delay(200);* r& R1 R2 L5 }$ g5 O
- digitalWrite(2,1);% a6 T r1 |/ q* M9 X3 ?
- delay(300);
( `3 F" ~9 \5 O0 S - Serial.print(".");
; g9 @9 W% L- Q: c- P, J - tryNum--;: N, v% I+ b) d
- if (tryNum == 0) {8 m$ R# @7 s6 [8 k
- // 1min
; T2 {* q* ?9 F" ~ - // ESP.deepSleep(60e6);
8 j2 H5 U: d4 q1 y - ESP.deepSleep(0);
6 V5 ~) ]* e! m8 \9 O; |( w7 I - }
. b% \, Q$ o" G2 C6 N5 S/ l) o - }
) [( r/ R$ T4 T. e5 S" j5 A9 F - Serial.print("\r\n");
1 S0 M( D$ _% v" Z6 B1 F& R/ Y6 r1 F - digitalWrite(2,1);. [( p, N0 J/ W" v4 C' ? D
- Serial.print("IP address : ");
, a* \; O0 A7 h% D+ \; o1 Y - Serial.println(WiFi.localIP());! `- [ ^& o7 h5 c" o* ^
- server.on("/", HTTP_GET, [](){ W- ~6 R4 u8 J8 \' Y- \
- server.sendHeader("Connection", "close");1 j" F; \+ w6 s8 p% @
- server.send(200, "text/html", serverIndex);
9 Q s- |* I5 x2 o/ l0 A' e5 Y+ B - });
( B- m, r/ e$ D# Z# P- X, p- I4 E - server.on("/update", HTTP_POST, [](){
# I/ I+ @$ ?5 u$ B6 n6 v4 O' \ - server.sendHeader("Connection", "close");
& |/ k5 y2 Q2 v4 [) M& v. q3 n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 y3 ]: |% _4 E2 I$ M
- ESP.restart();' {- P; \& B/ c3 s9 U
- },[](){
) ?7 T1 G, S$ O' z6 i3 b - HTTPUpload& upload = server.upload();
: h _+ p- _* }: g z# ?3 x - if(upload.status == UPLOAD_FILE_START){
- ^1 ^( W+ g' {( x, K1 z. l - Serial.setDebugOutput(true);
( I+ D6 }1 h1 O ? - Serial.printf("Update: %s\n", upload.filename.c_str());. _0 ] v9 R5 o9 R
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 b. S' i' \; s p
- if(!Update.begin(maxSketchSpace)){- R0 H* Y3 U2 E+ m# G
- Update.printError(Serial);
8 @) h1 i3 F/ K6 y8 h+ `' o i - }% \- i, ]8 c) y3 Q: E, x
- } else if(upload.status == UPLOAD_FILE_WRITE){7 U' ~8 s' d9 }2 G7 q5 g5 ? l
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) v, g+ m0 x6 z/ q, n1 X& N( W - Update.printError(Serial);
1 K+ \. n: a; w5 Q( `' E) _ - }2 U- s' j( r6 \: L i
- } else if(upload.status == UPLOAD_FILE_END){0 ? K8 U' L, f8 I, s
- if(Update.end(true)){! `. H8 q6 [! c% i. \0 A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ E+ V: K- c" p$ i% i6 @4 d - } else {
3 b, s5 W, k+ |# I5 V% e- y - Update.printError(Serial);+ Q* o: n' W. S8 L$ @
- }
+ D _9 O" a' F4 s: d - Serial.setDebugOutput(false);
( x# i0 h8 T; e# R' P - }
: l" r( e3 b) L& Z0 \6 n8 b/ \1 P - yield();' g" H* n- K2 O6 K- D
- });
9 ~$ c W4 ` F; [* ~ - 0 j5 L1 o: I, c2 I* K/ C& q& P$ d
- digitalWrite(2,0);
! O- l" Z: y& S& X) t4 n - mainAction();$ T5 x; Z( l8 N4 a0 |
- if (digitalRead(0)){, v# b) I( J# M, L# X4 A
- ESP.deepSleep(0);
3 n: A+ b% M& ^: ?/ A/ n2 } - } else {% R2 P& G/ T8 d
- server.begin();4 F, i& |" l( g; ?0 d
- }
/ _7 r9 `4 s; C L Y - }
( r8 P* @1 A2 J$ ^ - void loop() {3 v5 k7 N) ]6 a0 f4 o. F1 X
- server.handleClient();
4 V" v0 c- X: \* X" G - delay(1);$ v' U5 f- b* N. ~- U1 \
- }& E" [0 \: z( M7 |/ g8 @
- String doGet(String url){# L3 d. a* ^9 `6 l( K8 a4 s9 k
- if ((WiFiMulti.run() == WL_CONNECTED)) {! h# [( q4 P, @. G7 z2 I# L
- HTTPClient http;, ]9 `) N, C0 x1 B+ r
- Serial.println("[HTTP] begin...");
$ `9 [; u, ?; A* E - if (url.startsWith("https")) {
0 Z4 ~( R1 w. p: n8 u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: M$ ]3 E; V. X8 P
- } else {
0 @. N& a1 _5 U0 I, b. u* {, {+ p! y - http.begin(url);
1 P& T: }, R9 n k8 m) e/ K - }4 }% ^. i% h \( `
- Serial.println("[HTTP] GET...");& Q8 F4 E: R1 V1 M8 W9 L
- int httpCode = http.GET();; F) @3 l/ x2 T! j( S8 H" {% u
- if (httpCode > 0) {; l' h; v0 } S3 u+ E! L) d% p
- Serial.printf("[HTTP] code: %d\n", httpCode);
. N6 h! x' t. o6 w) K - if (httpCode == HTTP_CODE_OK) {
5 \3 j- @+ i( S `5 t6 ~ - String payload = http.getString();
- O/ c- L, Q+ A - Serial.println(payload);. P V* ]5 q" U2 f* B6 @
- Serial.print("\r\n");
6 `: t& a: n( u6 z, C - return payload;5 W% v6 ~8 U. }% o: P) q3 g
- }7 h8 M; f/ A! M3 n* N
- } else {
9 O4 U% m! m; x* V. r& F - Serial.printf("[HTTP] GET... failed, error: %s\n",9 ]. _3 I& C7 S
- http.errorToString(httpCode).c_str());
& P! ^: ~$ C) T1 R; q0 ?- q - }
! g' z3 I- H4 r, k - http.end();
( E5 m. V. i$ D d% _" q b: g- b - return "";
], M& {* v( ^1 u& f- @ S1 c6 e - }6 S+ x4 f4 q* j' ~
- }
) j# P8 ~! a1 F) A* B2 P8 i; p - void mainAction() {
, U$ c0 I' | V% R5 m" a, q7 ~ - // 发送请求5 q2 I1 e4 y' W' E1 J' Y: D
- doGet("http://google.cn");
7 n( k) p. R4 w4 L3 ]2 Z I1 a - }# [1 C* V+ K7 P3 E
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