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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)$ V: o0 Q9 R D
- #include <ESP8266HTTPClient.h>$ S( [- {+ L7 ~2 r' \; \1 y0 u
- #include <ESP8266WiFi.h>* A1 n k; j9 a4 r$ f' \+ o! Z
- #include <ESP8266WiFiMulti.h>
# a6 J, p1 c+ g% D/ E/ y - #include <ESP8266WebServer.h>
& C; H; f5 e' Y7 {. v% W - #include <arduino.h>, }& ^$ I0 s9 k/ b8 x( A
- ESP8266WiFiMulti WiFiMulti;
. ?' ?8 E$ P1 D% c5 z+ Z& c - ESP8266WebServer server(80);
" E/ |' {% T! a - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 `. i! j( @% m0 r: h( R - ADC_MODE(ADC_VCC);1 W1 g; P8 Q: N2 E* [9 A$ l. @% T
- void setup() {
/ p1 i* D5 }" Y. A: V! s8 W% ` - Serial.begin(115200);
7 }" g2 `: b7 t& e- l6 i4 v& r+ n - Serial.print("\r\n\n");: Z% j; a* F, u1 s* P
- pinMode(2,OUTPUT);( t6 p% A& O- n- ~* K( ~: _
- // WIFI% a% m: T& P9 e! I2 j
- WiFi.mode(WIFI_STA);7 l/ ]: l% v3 [, @8 `4 x4 u
- WiFi.hostname("Sparkle");
9 C" ~! ^0 x9 A0 d& M - WiFiMulti.addAP("wifi ssid", "wifi password");/ z" X' X4 ~! @9 |, e
- int tryNum = 15;. B5 M: s, z0 X9 F P* q/ S
- Serial.print("Connect WiFi");6 W! z& ^! r% J8 D: m/ M' w, b; X' C: l9 B
- while (WiFiMulti.run() != WL_CONNECTED) {
% Z# i4 a5 L1 Q2 L - digitalWrite(2,0);
2 K+ T1 h; L$ S8 r. q, A, h0 y( j - delay(200); y2 |; A$ m2 }; |4 O: z4 t
- digitalWrite(2,1);. F* C+ ?0 A( D k' F, K
- delay(300);
: @2 o( P, v" r' q/ h8 M" y" D& ^* V" l - Serial.print(".");- ^5 P, e, w) D& E: `
- tryNum--;2 _+ ]. y/ x3 r7 \* t) Z7 @3 c
- if (tryNum == 0) {
0 g# q* q( E0 B. O - // 1min$ {! [: j! J' O( h% ]
- // ESP.deepSleep(60e6);
; }6 w- x* |8 \6 M# k - ESP.deepSleep(0);4 h' Z" Z1 `# Z1 g7 e
- }& i7 p" ^+ \ G$ c; w/ d$ l
- }4 c+ m3 H8 t4 W* e/ t
- Serial.print("\r\n");
2 c4 t7 ?7 R/ k% S: f, G - digitalWrite(2,1);3 p9 j, p0 x5 O2 r. |
- Serial.print("IP address : ");3 l! u4 Q* Q" g8 B- k; j
- Serial.println(WiFi.localIP());; _) K' b8 N8 ^
- server.on("/", HTTP_GET, [](){ u+ c3 ]# S) g4 o& }
- server.sendHeader("Connection", "close");
; k6 ?0 ]7 j& ?8 Z' V/ {* N7 H - server.send(200, "text/html", serverIndex);+ u, e. G# s5 J+ Z& ^( [
- });
$ N0 ?% x1 I' P. J! ?' V2 u - server.on("/update", HTTP_POST, [](){
" S* q& ^/ x# _- J( D- J" R - server.sendHeader("Connection", "close");2 J9 G1 [) E0 H& a. d$ H
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ A- A) f* r: T0 h - ESP.restart();
M- c% j* k V) H9 G$ B+ t - },[](){
/ a6 t+ G7 o1 P: ? - HTTPUpload& upload = server.upload();
4 g4 d H5 [0 U3 V$ {0 u3 O l - if(upload.status == UPLOAD_FILE_START){
4 i2 p6 S |) \ i2 ]2 |1 {$ b0 J - Serial.setDebugOutput(true);8 O+ I1 |) j- H
- Serial.printf("Update: %s\n", upload.filename.c_str());
$ H B9 x n) T+ K2 f1 Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& x4 v' h7 p2 U; h - if(!Update.begin(maxSketchSpace)){
; Q5 @4 U. P8 j: S) s3 X - Update.printError(Serial);
9 I; C- |5 D9 {, E% G - }
; g4 E3 x& }. _* @% z4 V2 h+ k - } else if(upload.status == UPLOAD_FILE_WRITE){
" C6 [* \' M: G# V; |) M% ~ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& @2 y- I/ q+ I) M$ y
- Update.printError(Serial);
9 ~- C0 g) s7 f! c, e - }8 ?( \- d9 J7 F
- } else if(upload.status == UPLOAD_FILE_END){
& Q$ J9 G- y. M - if(Update.end(true)){
% r8 Y: |6 ?. M8 E) ]8 g: I/ y- } - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ \6 W% Z! [8 {; M1 {, N9 ]3 D5 O - } else {9 `4 T0 Z2 T0 t' P" j7 |& C
- Update.printError(Serial);$ P# }2 ?7 Z. u$ [+ ~5 [* f
- }
3 v& _! {9 s* [! m9 Q - Serial.setDebugOutput(false);
- n" l/ N0 D S a. s# Z- L - }
2 P4 ]: p% I- r! M6 x( q3 D2 s3 t - yield();
: l+ P$ y9 g/ T' t - });' @0 k8 Y1 W4 t% [: Y
- 4 m$ C# x6 M- j
- digitalWrite(2,0);1 q$ Q' t- t) k+ E0 L$ |& j
- mainAction();
, Q4 [; D' u& g( C3 j - if (digitalRead(0)){6 q7 {7 q6 \8 s
- ESP.deepSleep(0);% |+ C; j8 h# O% x# {9 q
- } else {
9 e' v5 F1 S% W5 o - server.begin();
5 H- [4 a' ~. c7 B+ k+ t - }' J( \7 U8 G" o+ M5 L& F. E- Z
- }
( w$ K7 R. ?. {: D4 G; z" C+ {' {) z# ? - void loop() {
8 G: B% s2 h6 ~ - server.handleClient();
* C9 L6 E8 X) V) Q - delay(1);
( \$ ]- W, e- ~; {% S5 {- K - }$ v) O N. g8 Y. r3 ]+ o
- String doGet(String url){8 E4 U5 Y1 x: \
- if ((WiFiMulti.run() == WL_CONNECTED)) {( W" m) _( l! ~4 X+ p' A" B4 L
- HTTPClient http;
- O/ @( m1 N; {# O - Serial.println("[HTTP] begin...");
/ b: @ K/ Y! C. f$ z4 R- J - if (url.startsWith("https")) {
0 E9 b3 L6 z$ G; g, S! G - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) s4 G$ @0 Q; K9 R( x6 D4 S - } else {
& |. O2 B$ o Y2 k1 X% ]% \0 N' } - http.begin(url);+ X B5 G& r6 @5 z' o# K4 N$ L
- }
! q, i+ S% J, l0 a( ] - Serial.println("[HTTP] GET...");$ [+ y9 M V6 P% F: @4 W4 d$ [
- int httpCode = http.GET();
1 O6 N0 u8 g6 C" a" [2 c - if (httpCode > 0) {
7 h7 }. U0 A1 S4 b. S1 | - Serial.printf("[HTTP] code: %d\n", httpCode);
0 w+ |: [! V* K2 j' A) U3 m - if (httpCode == HTTP_CODE_OK) {8 T. p7 a/ V: h3 G
- String payload = http.getString();
. ]6 F0 ?4 z% r$ k - Serial.println(payload);, H* O% j! M6 P q6 R( T
- Serial.print("\r\n");
+ ?! @+ w% T# ~- D. \ - return payload;
0 Z8 t) B5 ~! g( m8 Y! o - }
1 l/ c0 r& c! J7 ?9 W2 b& ? - } else {/ R1 X5 X- c& G$ u
- Serial.printf("[HTTP] GET... failed, error: %s\n",9 G; {$ W# K; x2 [% X3 B9 b% b
- http.errorToString(httpCode).c_str());. R$ X+ L1 f5 X4 p6 s& n, j* P
- }
4 z( s, b3 i' g7 O8 M/ P - http.end();; ^; i* Z8 v' m% J K# h* \
- return "";
- x2 _. d) X' L - }
* V; b$ G0 g4 ? g2 \ - }1 s/ x h6 q% K+ t
- void mainAction() {
7 z- _5 O( H' A/ ]$ l - // 发送请求
( K/ q" |) ], |2 Z7 p/ m - doGet("http://google.cn");, i7 N7 P& J) _% }1 d
- }* K3 s: @/ ~" n F# x$ W
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